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Chemistry: Most Popular Articles

These articles are the most popular over the last month.
Know the Difference Between Baking Powder &...
Baking powder and baking soda both are used to make baked goods rise. Learn the difference between baking powder and baking soda and how to make ingredient substitutions if you run out of one and not the other.
Science Quiz - Test Your General Science...
Test your general science knowledge with this fun multiple choice quiz.
How To Substitute Baking Powder and Baking Soda
Baking powder and baking soda are leavening agents that help baked goods to rise. Here is exactly how to substitute baking powder and baking soda.
9 Worst Science Mistakes in Movies
Learn about the worst science errors in science and fiction movies.
20 Chemistry Questions Quiz - 20 Chemistry...
Take a multiple choice quiz to test yourself about general knowledge in chemistry.
Basics of Acids and Bases Quiz - Test Your...
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
Quick Chemistry Facts About the Ideal Gas...
The gas constant or R is an important constant in the ideal gas law. This is the definition and value of the gas constant.
How to Calculate the Concentration of a...
Calculating concentration is a basic skill needed by chemistry students. This is a list of steps and examples to calculate the concentration of chemical solutions in percent composition by mass, volume percent, molarity, molality, and normality.
This Is How To Calculate Percent Error
Percent error or percentage error is the difference between an approximate or measured value and an exact or known value. Here is how to calculate percent error.
10 Examples of Chemical Reactions in Everyday...
Chemistry happens in the real world, not just a lab. Here are 10 examples of chemical reactions in everyday life.
10 Examples of Chemical Changes That We...
Chemical changes occur when chemical reactions between substances form new products. Get examples of 10 chemical changes in everyday life.
How To Build a Classic Baking Soda Volcano
The chemical volcano is the classic science fair project. This step-by-step recipe will show you how to make your own baking soda volcano.
Know the Differences Between DNA and RNA
Although DNA and RNA both carry genetic information, there are quite a few differences between them. This is a comparison of the differences between DNA versus RNA, including a quick summary and a detailed table of the differences.
What Is Borax and Where Can You Get It?
Borax is a common household and commercial chemical. Here's a look at what borax is, some facts about borax and how you can get borax.
Why You Shouldn't Mix Bleach and Ammonia
Mixing bleach and ammonia is extremely dangerous, since toxic vapors will be produced. Here are the chemical reactions involved in mixing bleach and ammonia and first aid advice if you accidentally become exposed to a bleach and ammonia mixture.
What Does pH Stand For?
Have you ever wondered what pH stands for or where the term originated? Here is the answer to the question and a look at the history of the pH scale.
Which Element Are You? - Element Personality Quiz
Which chemical element are you? Technically speaking, you mostly consist of carbon, hydrogen, and oxygen, but which element best represents your personality? Take this fun multiple choice quiz to find out.
Get Formulas for Surface Area and Volume of...
Here are the surface area and volume math formulas for a prism.
What Is STP in Chemistry?
Here's an explanation of what STP is in chemistry and why it is useful, particularly when dealing with gases.
How Much of The Human Body Is Water?
Have you ever wondered how much of your body is water? The percentage of water varies according to your age and gender. Here's a look at how much water is inside you.
Equation for the Baking Soda and Vinegar Reaction
The reaction between baking soda and vinegar generates carbon dioxide gas, used in chemical volcanoes. Here is the equation for the reaction between baking soda and vinegar.
What Temperature Does Water Boil?
At what temperature does water boil? What determines the boiling point of water? Here's the answer to this common question.
A List of the Strong Acids
These are the strong acids. There are only six strong acids, so you might want to commit the list of strong acids to memory.
Get Printable Worksheets To Practice Balancing...
This is a collection of printable worksheets to practice balancing equations. The printable worksheets are provided in pdf format with separate answer keys.
Is It Okay To Drink Distilled Water?
Distillation is one method of water purification. Is distilled water safe to drink or as good for you as other types of water? The answer depends on a few different factors.
10 Examples of Physical Changes
Physical changes involve a new form or shape of matter, but no chemical reaction. This is a list of 10 examples of physical changes.
What Are the Strong Bases?
Strong bases are bases which completely dissociate in water. Here is a list of the most common strong bases.
Atom Basics Quiz - Test Your Chemistry Knowledge
Atom Basics Quiz - Test Your Chemistry Knowledge: structure quiz chemistry knowledge model of the atom question quiz science fundamentals
How To Blow Giant Bubbles That Won't Pop
If you're tired of bubbles that pop as soon as you blow them, try this recipe for unbreakable bubbles!
Heterogeneous and Homogeneous Mixtures: What's...
Heterogeneous and homogeneous refer to mixtures of materials in chemistry. Learn about the difference between these mixtures and get examples of each type.
Anode vs. Cathode: What's the Difference?
Here is how to define anode and cathode and how to tell them apart.
8th Grade Science Quiz
Could you pass an 8th grade science quiz? Test your general science knowledge with this fun multiple choice test.
What Is the Difference Between Organic and...
Organic compounds and inorganic compounds form the basis for chemistry. Here is a look at the difference between organic and inorganic compounds, plus examples of each type.
How to Make a Bouncing Polymer Ball
Use chemistry to make a bouncing polymer ball, then alter the procedure to see the effect the changes have on the characteristics of the bouncing ball.
Convert Grams To Moles - Sample Problem
This worked example problem shows how to convert the number grams of a molecule to the number of moles of the molecule.
How to Remove Ball Point Pen Ink
Ball point pen ink is not a something that you can usually remove with simple soap and water, but there is an easy and inexpensive way to remove pen ink from surfaces or clothing. Here is what you do.
12 Easy Chemistry Projects You Can Do at Home
Want to do a chemistry project but don't have your own laboratory? Here is a collection of experiments using common materials you have at home.
9th Grade Science Test
Test your general science knowledge of 9th grade science with this fun online multiple choice quiz.
pH of Household Products Quiz
pH of Household Products Quiz - See whether you know the pH of chemicals around your home.
What Are the 7 Diatomic Elements?
There are seven elements that form homonuclear diatomic molecules or simple molecules with their own atoms. This is a list of the 7 diatomic elements.
10 Types of Solids, Liquids, and Gases
Get examples of types of solids, liquids, and gases and learn about the transitions or phase changes between them.
What Are the Types of Chemical Reactions?
When you mix chemicals, you may get a chemical reaction. Learn about the different types of chemical reactions and get examples of the reaction types.
Elements by the Numbers: From Hydrogen to...
Here's a list of all of the chemical elements of the periodic table ordered by increasing atomic number. The names and element symbols are provided.
20 Science Questions Quiz - 20 Science Facts...
Take a multiple choice quiz to test yourself about general knowledge in science.
Know the 3 Types of RNA and Their Functions
One common homework and test question asks you to name the three types of RNA and list their functions. Here's the answer.
Understand the Difference Between Independent...
The difference between independent and dependent variables in a scientific experiment is which variable is being measured. Here's an explanation of how to tell these critical variables apart.
Are Apple Seeds Poisonous?
Apple seeds do contain a small amount of cyanide, which is a lethal poison, but humans are protected from it in several ways.
Make Your Own pH Indicator with Red Cabbage
Make your own pH indicator solution! Red cabbage juice contains a natural pH indicator that changes colors according to the acidity of the solution. Red cabbage juice indicator is easy to make, exhibits a wide range of colors, and can be used to make your own pH paper strips.
How to Calculate Mass Percent in Chemistry
Mass percent composition of a molecule shows the amount each element in a molecule contributes to the total molecular mass. This step by step tutorial will show the method to determine the mass percent composition of a molecule.
What Is Alum?
Find out what alum is and the uses of alum.
pH of Common Chemicals
pH is a measure of the acidity of a substance. Here's a table of the pH of several common chemicals.
Things That Glow in Black or Ultraviolet Light
This is a list of materials that glow under ultraviolet or black light because they contain fluorescent or phosphorescent molecules.
How to Write a Lab Report
Lab reports are an essential part of all laboratory courses and a significant part of your grade. Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of the report.
What You Need to Know to Calculate pH
Review how to calculate pH and what pH means with respect to hydrogen ion concentration, acids, and bases.
Chem Students Should Know These Acid and Base...
Here are the names and formulas of some of the common acids and bases.
Why You Shouldn't Mix Bleach and Vinegar
Mixing bleach and vinegar is a bad idea because it produces toxic chlorine gas. Here's what you should know about mixing bleach and vinegar, before you try it.
Chemistry Jokes and Puns - With Explanations
This is a collection of chemistry jokes, riddles, and puns with explanations.
Balancing Equations Practice Quiz
Practice balancing chemical equations with this multiple choice quiz.
Interactive Periodic Table of the Elements
This is an interactive periodic table of the elements. Click on an element symbol to get detailed facts for each element.
How to Calculate Normality of a Solution
The normality of a solution is the gram equivalent weight of a solute per liter of solution. Here's an example of how to calculate the normality of a solution.
An Easy Way to Calculate Molarity of a Solution
Molarity is a unit of concentration measuring the number of moles of a solute per liter of solution. Here is how to calculate molarity of a solution.
Understand the Difference Between a Cation and...
Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion. Here are the details on the difference and how to tell them apart.
Determine Concentration Using Titration
Here is an acids and bases example problem involving titration. A base of known concentration is used to neutralize an unknown concentration of an acid.
What's the Difference Between Chemical and...
Here are some examples of physical changes and chemical changes, along with an explanation of how you can tell physical and chemical changes apart.
Everything You Need to Know About Crystal Meth
Need crystal meth facts? Learn what crystal meth is, why people takeit, how it's made, and what risks are associated with using methamphetamine.
Understanding Endothermic and Exothermic...
Learn about endothermic and exothermic chemical reactions and get instructions to perform your own hot and cold chemistry experiments.
3 Steps to Writing Balanced Chemical Equations
Balancing chemical equations is a key chemistry skill. Use these step by step instructions to write and balance chemical equations.
Over 20 Fun Kitchen Science Experiments for Kids
Do you want to explore science, but can't find or can't afford chemicals? You can explore the fun of science in your own kitchen. Here are some science experiments and projects you can do that use common kitchen chemicals.
Element Picture Quiz - Test Your Recognition of...
Can you recognize the elements when you see them? Here's a quiz that tests your ability to identify an element based on its appearance.
Learn About Combustion Reactions
This is an overview of combustion reactions, including what they are, the general format for the reaction, and examples of combustion reactions.
Is It Safe To Drink Bleach? Will It Kill You?
Learn whether or not it is safe to drink bleach, what happens if you do, and whether it can kill you.
How to Convert Celsius to Kelvin
Celsius and Kelvin are two important temperature scales. It is easy to convert Celsius to Kelvin with these steps.
What Is the pH of Water?
The pH of water is a value you should know, plus it's good to understand why the actual pH of water might differ from the theoretical value.
Common Examples of Covalent Compounds
These are examples of covalent bonds and covalent compounds.
Examples of Endothermic Reactions
This is a list of chemical reactions that are endothermic reactions. You can try these reactions to make homemade cold packs.
Baking Soda and Vinegar Erupting Volcano
The baking soda and vinegar volcano is the classic chemical volcano that you see at science fairs. Watch how easy it is to make a chemical volcano that produces a memorable eruption.
What Are Examples of a Hypothesis?
Here are examples of a scientific hypothesis and how to improve a hypothesis to use it for an experiment.
Quick Facts About Muriatic Acid
Here is a look a what muriatic acid is, where you can find it, and the uses of muriatic acid.
Learn Key Acids and Bases Definitions
Understanding acids and bases is important for grasping chemistry concepts. Here's an introduction to acids and bases, with definitions for key acid and base terms.
What Is the Freezing Point of Water?
What is the freezing point of water or the melting point of water? Are the freezing point and melting point the same? Are there any factors that affect the freezing point of water? Here's a look at the answers to these common questions.
Metals vs. Nonmetals: What's the Difference?
Elements may be classified as either metals or nonmetals, based on their properties. Here's a look at the differences between the metals and nonmetals.
List of All the Elements That Are Metals
Most elements are metals. This group includes the alkali metals, alkaline earth metals, transition metals, basic metals, and rare earth elements.
Do You Know the Names of 10 Acids?
Here is a list of ten common acids with chemical structures.
How Does the Fermentation Process Actually Work?
Fermentation is a process used to produce wine, beer, yogurt and other products. Here's a look at the chemical process that occurs during fermentation.
What Is the Most Conductive Element?
Here is a look at the three most electrically conductive elements. As you might expect, all three conductive elements are metals.
11 Things You Should Never Microwave
You can see some interesting phenomena using your microwave, but is it worth the risk? Here are examples of things you should not microwave.
18 Fun and Easy Slime Recipes
There's more than one way to make slime. Actually, there are lots of different recipes! Here are some of the best recipes for different types of slime, from normal slimy slime to eerie glow-in-the-dark slime.
What Is a Synthesis Reaction in Chemistry?
A synthesis reaction or direct combination reaction is one of the most common types of chemical reactions. Here is a definition, explanation, and example of a synthesis reaction.
Independent Variable Definition and Examples
This is the definition of an independent variable, with examples. An independent variable is one of the key factors in a scientific experiment.
What Does Concentration Mean in Chemistry?
This is the definition of concentration, as used in chemistry.
Is Milk an Acid or a Base?
Have you ever wondered about the pH of milk and whether it is an acid or a base? Here's a look at the pH of milk.
Examples of Compounds with Ionic Bonds
Ionic compounds form when elements share electrons. Here are examples of ionic bonds and ionic compounds.
It's Easy to Make Bubbles Glow
Bubbles are already awesome, but glowing bubbles are even better. It is easy and safe to make bubbles glow, plus it doesn't require any hard-to-find materials. Here is what you do.
What Is the Chemical Composition of Air?
Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.
Can You Drink too Much Water?
Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.
Easy Steps To Balance Chemical Equations
Learn how to balance chemical equations. These step by step instructions are simple enough for dummies. You're not dumb. You can do this!
Chemistry: What is a Solution?
Solution definition, as used in chemistry, chemical engineering, and physics.
Your Guide on How to Make Smoke Bombs
Learn how to make a smoke bomb. This is the list of materials required for making your own smoke bomb.
Will Mango Skin Give You a Poison Ivy Reaction?
Can you eat the skin of a mango? The answer depends on a few different factors. Here's a look at the good chemicals in mango, as well as one that can cause a nasty reaction.
How to Make Homemade Slime (Classic Recipe)
This is a classic recipe for homemade slime. It's super-easy, plus I included tips for success.
6th Grade Science Quiz - Test Your 6th Grade...
Test your 6th grade general science knowledge with this fun multiple choice quiz.
Understand the Difference Between Oxidation and...
Oxidation and reduction reactions involve an exchange of electrons between reactants. Here is how to tell which reactant was oxidized and which was reduced.
Handy List of All the Element Symbols
The elements are the basis for all matter. Learn the one and two letter symbols for the chemical elements of the periodic table using this handy list.
What's the Difference Between Ionic and...
Ionic and covalent bonds hold molecules together. Learn to distinguish between ionic and covalent bonds, and determine whether a bond will be polar or nonpolar.
Which Mad Scientist Are You? - Mad Scientist...
If you were a famous mad scientist, which mad scientist would you be? Take this fun multiple choice quiz to find out.
What are the Mood Ring Colors and Meanings?
This chart shows the colors of the typical 1970s mood ring and the meanings associated with the mood ring colors.
What Is a Base in Chemistry?
Base definition, as used in chemistry, chemical engineering, and physics.
What Are the First 20 Elements?
Here are the first 20 elements and their symbols.
What Determines the Strength of an Acid or Base?
Learn about strong and weak acids and bases. Get definitions and examples of each type.
Periodic Table Quiz - Test Your Periodic Table...
Test your periodic table knowledge with this fun multiple choice quiz.
Chemical Reaction Classification Quiz - Test...
There are many different types of chemical reactions. There are single and double displacement reactions, combustion, decomposition reactions and synthesis reactions. See if you can identify the type of reaction in this ten question chemical reaction classification quiz.
What Is the Mole Unit of Measurement?
If you take chemistry, you need to know about moles. Find out what a mole is and why this unit is used in chemistry.
What is the Difference Between Molarity and...
Molarity and molality are both measures of concentration of solutions. One is the ratio of moles to volume of the solution and the other is the ratio of moles to the mass of the solution.
What Is the Difference Between Celsius and...
Learn the difference between Celsius and centrigrade temperature scales.
Name 5 Common Acids Found in the Home
Acids are common chemicals. Here is a list of 5 acids found in the home.
Is It Okay To Drink Rain Water?
Here's a look at whether or not it's safe to drink rain water, the risks, and ways to improve rain water quality to make it better to drink.
What Is a Solvent in Chemistry?
Solvent definition, as used in chemistry, chemical engineering, and physics.
Try These Natural Mosquito Repellents
Learn about natural ways to repel mosquitoes and develop strategies to reduce your exposure to them.
Know the Names of 10 Common Bases
Here is a list of ten common bases with chemical structures.
3 Ways To Calculate Atomic Mass
The atomic mass or atomic weight of an element is a weighted average of all the element's isotopes based on their natural abundance. It is simple to calculate the atomic mass of an element with these steps.
Chemical Bonds & Compounds Chemistry Quiz
Chemical Bonds & Compounds Chemistry Quiz: electron dot structures ionic covalent bonds lewis electron dot structures chemistry quiz chemistry quizzes
What Is Bleach and How Does It Work?
Learn about the different types of bleaches and how they work.
What Is a Pure Substance?
A pure substance or chemical substance is a material that is homogeneous and has constant properties throughout the sample. Here are examples of pure substances.
How to Determine the Empirical and Molecular...
The empirical formula of a chemical compound is the simplest whole number ratio between the elements. The molecular formula is the actual whole number ratio between the elements. This step by step tutorial shows how to calculate the empirical and molecular formulas for a compound.
Table of Electrical Resistivity and Conductivity
This is a table of electrical resistivity and electrical conductivity of several materials.
Control vs. Experimental Group: How Do They...
Learn about the difference between the control group and the experimental group in a scientific experiment.
Functional Group Quiz - Test Your Recognition...
You see them all the time, but how well do you know your common organic functional groups? Take this quiz to see if you can match names to structures of functional groups. Put the FUN in FUNctional group!
Which Alchemy Element Are You? - Personality Quiz
If you were an alchemical element which of the 5 elements would you be? The classic 5 elements of alchemy are earth, fire, air, water and aether. Which best represents your personality? Take this fun multiple choice quiz to find out.
Know What Happens If You Mix Regular and...
Have you ever wondered what would happen if you mixed regular and synthetic motor oils? Here's the answer to the question and a look at whether you should ever mix oils or whether it could damage your vehicle's engine.
What Are Acid-Base Indicators?
Learn about what an acid-base indicator is and choose an acid-base indicator from this comprehensive table of acid-base indicators, based on pH range or color change.
Chemicals in Superfoods That Make Them Super...
Learn about the specific chemical compounds in superfoods that make them super healthy.
What Is STP?
STP, Standard Temperature and Pressure definition, as used in chemistry and other physical sciences.
What's the Difference Between a Scientific...
Learn about the difference between a scientific law, hypothesis, and theory.
Why Do Cheap Rings Turn Your Fingers Green?
Have you ever had a ring turn your finger green? The reason this happens is because of the metal content of the ring. Here's a look at what's happening.
Science Experiments: What Are Variables?
Variables are an important part of science projects and experiments. Here is an explanation of what a variable is and a description of the different types of variables you'll encounter in science.
Ionic Compounds Nomenclature Quiz - Can You...
This multiple choice quiz covers ionic compound nomenclature. Test your ability to name ionic compounds and to write the formula of ionic compounds from their names.
How Is DNA Transcribed to RNA?
There are significant differences in the process of transcription in prokaryotes versus eukaryotes.
What Causes Brain Freeze?
If you've ever experienced a sudden stabbing pain in your forehead when eating ice cream or enjoying a cool drink then you know what brain freeze is. Do you know what causes brain freeze or how you can stop the pain?
What Are Buffers and What Do They Do?
Buffers are an important concept in acid-base chemistry. Here's a look at what buffers are and how they function.
What Are the Rules for Assigning Oxidation...
Learn how to assign oxidation numbers to keep track of the distribution of electrons during a chemical reaction.
What Are the Properties and Characteristics of...
Here are the properties shared by the ionic compounds.
What Is the Density of Water?
The density of water is related to its specific gravity. The density is the weight of the water per its unit volume, which depends on the temperature of the water. While you can round the density to 1 gram per milliliter, here are more precise values for you.
How Can I Get Fluoride Out of My Water?
Learn how to remove fluoride from drinking water and how to reduce your exposure other ways.
What Are Farts Made Of?
Have you ever wondered what farts are made of and whether they are the same for everyone? Here's a look at the chemical composition of farts.
Common Examples of Polymers
Do you need some examples of polymers? Here is a list of materials that are polymers, plus some examples of materials that are not polymers.
Why Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.
Meet the Worst Acids in the World
Meet the worst types of acid in the world. These acids are strong and corrosive and downright nasty.
6 Homemade Modeling Clay Recipes
There are several ways you can make homemade clay for modeling, making ornaments, and for other projects and crafts. Here are several clay recipes, including a refrigerator clay, a clay you bake to harden, one you coat for a glossy finish, and one that works up and stays pliable much like store-bought modeling clay.
Bleach and Alcohol Make Chloroform
Mixing bleach and alcohol is a bad idea because the chemicals react to make chloroform. Here's a look at what happens and the risks associated with mixing these chemicals.
Fun Science Project Idea: How To Make Ice Cream...
Make ice cream in a bag to get a tasty treat while learning science.

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