
Chemistry Quiz
Authored by April Adkins
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12th Grade
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88 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is stoichiometry in chemistry?
A method to balance chemical equations
The quantitative relationship between the amounts of reactants and products in a chemical reaction
A unit of measurement used to represent an amount of substance
The process of determining the limiting reactant in a reaction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are balanced chemical equations important?
They indicate the physical states of the reactants and products
They ensure that the law of conservation of mass is obeyed
They provide the exact temperature for a reaction to occur
They speed up the rate of the chemical reaction
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Avogadro's number represent?
The number of atoms in 12 grams of carbon-12
The number of molecules needed to balance a chemical equation
The number of particles in one mole of a substance
The molar mass of a substance
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using stoichiometric coefficients in chemical equations?
To indicate the color change in a reaction
To represent the temperature at which a reaction occurs
To determine the mole ratios necessary for stoichiometric calculations
To show the catalyst required for the reaction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reactant is considered the limiting reactant in a chemical reaction?
The reactant that is completely consumed first
The reactant that is in excess
The reactant that produces the most product
The reactant that is least expensive
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What remains after the limiting reactant is completely consumed?
Products
Catalysts
Excess reactants
Intermediate compounds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which technique is NOT used for balancing chemical equations?
Adjusting coefficients, balancing atoms one at a time
Utilizing polyatomic ions as single entities
Changing the subscripts of chemical formulas
Identifying the type of chemical reaction
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