
Chemistry Final Exam Review
Authored by Amanda Cook
Chemistry
9th - 12th Grade
NGSS covered
Used 4+ times

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64 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Knowledge about what products are produced in a chemical reaction is obtained by
inspecting the chemical equation.
balancing the chemical equation.
laboratory analysis.
writing a word equation.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A solid produced by a chemical reaction in solution that separates from the solution is called
a precipitate.
a reactant.
a molecule.
the mass of the product.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After the correct formula for a reactant in an equation has been written, the
subscripts are adjusted to balance the equation.
formula should not be changed.
same formula must appear as the product.
symbols in the formula must not appear on the product side of the equation.
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In writing an equation that produces hydrogen gas, the correct representation of hydrogen gas is
H.
2H.
Hâ‚‚.
OH.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the law of conservation of mass, the total mass of the reacting substances is
always more than the total mass of the products.
always less than the total mass of the products.
sometimes more and sometimes less than the total mass of the products.
always equal to the total mass of the products.
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical equation is balanced when the
coefficients of the reactants equal the coefficients of the products.
same number of each kind of atom appears in the reactants and in the products.
products and reactants are the same chemicals.
subscripts of the reactants equal the subscripts of the products.
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which coefficients correctly balance the formula equation NH₄NO₂(s) → N₂(g) + H₂O(l)?
1, 2, 2
1, 1, 2
2, 1, 1
2, 2, 2
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