Chemical Reactions-Chapter 7 Question Preview (ID: 27800)


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What is the shorthand form for describing a chemical reaction?
a) chemical change
b) chemical equation
c) chemical formula
d) chemcial reaction

reactions that require absorb heat (thermal) energy
a) endothermic reactions
b) chemical reactions
c) exothermic reactions
d) physical reactions

reactions that release heat (thermal) energy
a) chemical reactions
b) physical reactions
c) exothermic reactions
d) endothermic reactions

Which is a neutral subatomic particle?
a) neutron
b) proton
c) electron
d) atom

What is the term for a change in size, shape, or state?
a) chemical reaction
b) chemical change
c) physical reaction
d) physical change

The arrow in a chemical equation refers to the word_________________.
a) equals
b) produces
c) balances
d) energy

tells you the number of atoms of each element
a) bond
b) mass
c) subscript
d) therm

a process that produces a chemical change
a) chemical reaction
b) chemical change
c) physical reaction
d) physical change

substances on the right side(and produced by) of a chemical equation
a) products
b) reactants
c) bonds
d) atoms

substances on the left side of a chemical equation
a) bonds
b) products
c) reactants
d) atoms

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