Unit 1 Review

All matter is made of what...

• energy

• atoms

• electrons

• compounds

What are the states of matter?

• Solid, Liquid, Water
• Solid, Liquid, Gas
• Melting, Freezing, Condensing, Evaporating
• Water and Liquid

What is a molecule?

• Two or more atoms bonded together
• One element
• One atom
• Solid, Liquid, Gas

What does this image represent?

• Atom
• Element
• Molecule
• Marshmallows

What is the state of matter that has an infinite shape and definite volume?

• Solid
• Liquid
• Gas
• Plasma

What is the smallest particle?

• Element
• Molecule
• Atom
• Plasma

How many elements are in the following equation:
HO₂C

• 2
• 1
• 4
• 3

Mass is neither created nor ______________.

• made

• destroyed

• changed

What will happen to the mass of the product if I double the mass of the reactants?

• It will decrease by half.
• It will increase by half.
• It will double in amount.
• The mass remains the same.

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation