ch 7 Multiple Choice Test

A chemical reaction that transfers energy from the reactants to the surrounding is referred to as

A change in color is a sign that a(n) _____is taking place

Sound is not made of matter because is has no or ____

In a ________ reaction the reactants are broken down into other substances

A substance is ______________ when it gaines electrons

When a reaction is at equillibrium, increasing pressure favors the reaction that produces

A sign that a chemical reaction is taking place is release of energy in the form of or _

A(n) ____________ reaction is one in which heat is transferred from the surrounding reactants

A reaction that involves the transfer of ____ is called a(n) reaction

Equilibrium is achieved when the and __________ reactions continue to take place at the same rate

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