Chemcial Reactions Question Preview (ID: 3308)


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The substances to the right of the arrow in a chemical equation is a _________
a) catalyst
b) precipitate
c) reactant
d) product

A substance that speeds up a chemical reaction without undergoing a permanant change itself is a ______
a) catalyst
b) precipitate
c) reactant
d) product

In a chemical equation, the symbol that means dissolved in solution
a) (s)
b) (l)
c) (g)
d) (aq)

If energy in the form of heat is required and used in a chemical reaction, the reaction is ________
a) exothermic
b) endothermic
c) balanced
d) precipitation

Substances that prevent certain chemical reactions, or slow them down, are ______
a) endothermics
b) catalysts
c) inhibitors
d) products

A chemical reaction in which heat energy is released is a ____________ reaction
a) exothermic
b) endothermic
c) balanced
d) precipitate

The number that is to the left of symbols and formulas in a chemical equation are called ____________
a) subscripts
b) superscripts
c) fractions
d) coefficients

Each substance on the left side of the arrow in a chemical equation is a _________
a) reactant
b) product
c) coefficient
d) catalyst

A(n) _______________ chemical equation has the same number of atoms of each element on both sides of the equation
a) simple
b) balanced
c) unbalanced
d) complex

What is an insoluble solid that comes out of a double displacement solution?
a) an inhibitor
b) a coefficient
c) a catalyst
d) a precipitate

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