Chemical Interactions -- Inv 1 & 2

True or False. A substance changing state is evidence of a chemical reaction.

a fundamental substance that cannot be broken into simpler substances

What are the elements in CaCl2?

True or False. A substance can be identified by its chemical name?

process during which the atoms of a starting substance rearrange to form new substances

the name of a substance based on every day language

an organization of the elements based on chemical properties

True or False. A substance can be identified by its chemical formula.

anything that has mass and takes up space

code that represents the number and type of atoms in a substance

What are the elements in H2O?

True or False. A change in temperature is evidence of a chemical reaction.

the name chemists use for a substance; contains the names of the elements in that substance

a representation of an element using one or two letters

What does the symbol Na represent on the periodic table?

True or False. Color change is evidence of a chemical reaction.

True or False. All substances are made of elements.

Which is smaller (simpler); an element or substance?

What are the elements in CO?

True or False. Symbols on the periodic table with 2 letters always have 2 capital letters.