Unit 5 Review
Authored by Robert Oliver
Chemistry
9th Grade
NGSS covered
Used 2+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To determine the mole ratio of two substances in a reaction, you must know...
The balanced chemical reaction
The molar mass of the two substances
The atomic weight of each substance
What the limiting reactant is
Tags
NGSS.HS-PS1-7
2.
DRAG AND DROP QUESTION
1 min • 1 pt
Stoichiometry involves using a (a) to determine the (b) of reactants and products involved in reactants
Tags
NGSS.HS-PS1-7
3.
DRAG AND DROP QUESTION
1 min • 1 pt
To calculate masses from the moles of reactants or products, we can use the (a) of substances which ban be found (b)
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The limiting reactant _____ in a chemical reaction.
is completely used up
has some left over
is formed first
precipitates out of solution
5.
DRAG AND DROP QUESTION
1 min • 1 pt
The (a) is the maximum amount of a given product that can be formed when the (b) is completely consumed.
percent yield
activation energy
actual yield
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is percent yield?
The actual yield of a product as a percentage of the theoretical yield
The ratio of the mass of reactants to products in a chemical reaction
The percentage of reactants used in a reaction
The percentage of energy conserved in a reaction
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is usually SMALLER?
actual yield
percent yield
it could be either
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