The Law of Conservation of Atoms

The Law of Conservation of Matter

The Law of Chemical Reactions

non polar bonds

ionic bonds

boiling point is the same

less than the mass of the product

greater than the mass of the product

the same as the mass of the product

molecule; covalent bonds

ion; ionic bond

metal; metallic bond

less than the mass of the product

greater than the mass of the product

the same as the mass of the product

the ice cube has a greater mass

the liquid water has fewer mass

the ice cube is in a solid state

the ice cube is in a gaseous state

evaporation

convection

sublimation

deposition

a chemical change produces new substances with new and different properties

a chemical change causes a single substance to break down into two or more

a chemical change uses electricity to break a compound into elements

water

salt

hydrogen

air

it decreases

it increases

its stays the same

they are inversely proportional

they are directly proportional

they are constant

How much oxygen and hydrogen are produced?

Where do hydrogen gas comes from?

What are the physical properties of water?

How can water be produced from hydrogen and oxygen?

it is a heterogeneous mixture

the mixture is so evenly mixed that you cannot see the different parts

copper sulfide is a compound with properties that are different from copper or sulfide