- An element
aluminum foil, copper wire, aluminum can, iron name - A heterogeneous mixture
sand and water, salt and iron filings - A homogenous mixture
air, sugar solution - A gas-liquid solution
soda - A malleable substance
play-doh. modeling clay - A solid-liquid solution
maybe an amalgam of silver and mercury? tough one - if you think of a decent example let me know - A substance which has a volume of 1 cm3
standard sugar cube, cut a cube of soap the proper size - An edible example of a physical change
melting ice cream - An edible example of a chemical change
seltzer tablet (barely edible), candies that fizz or pop when damp - A pure compound which contains ionic bonds
salt - A pure compound which contains covalent bonds
sucrose or table sugar - A mixture that can be separated by filtration
fruit cocktail in syrup - A mixture that can be separated by some other method than filtration
salt water - salt and water can be separated using reverse osmosis or an ion exchange column - A substance with a density less than 1g/mL
oil, ice - A substance with a density more than one
any metal, glass - A substance which contains a polyatomic ion
gypsum (SO42-), epsom salts - An acid
vinegar (dilute acetic acid), solid citric acid - A metal
iron, aluminum, copper - A non-metal
sulfur, graphite (carbon) - An inert gas
helium in a balloon, neon in a glass tube, argon if you have access to a lab - An alkaline earth metal
calcium, magnesium - Immiscible liquids
oil and water - A toy which demonstrates a physical change
a toy steam engine - The result of a chemical change
ashes - A mole
18 g of water, 58.5 g of salt, 55.8 g of iron - A substance with tetrahedral geometry
silicates (sand, quartz), diamond - A base with a pH greater than 9
baking soda - A polymer
a piece of plastic
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