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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