Stoichiometry Concepts

QuizÂ by Donna Donohue

Feel free to use or edit a copy

includes Teacher and Student dashboards

### Measure skillsfrom any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

• edit the questions
• save a copy for later
• start a class game
• automatically assign follow-up activities based on studentsâ€™ scores
• assign as homework
• share a link with colleagues
• print as a bubble sheet

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

12 questions
• Q1
In order to perform a stoichiometry calculation you must always have
a periodic table
the molar mass for every compound and element
a balanced equation
an electronic balance
30s
• Q2
To find the molar mass of an element or compound you need
the molar ratio
a periodic table
a balance
a balanced equation
30s
• Q3
What is stoichiometry?
The quantitative relationships between amounts of reactants used and products formed by a chemical reaction
The relationship between the periodic table and the molar mass
The relationship between you and your best friend
The relationship between moles of each substance in a reaction
30s
• Q4
The coefficients in a chemical equation tell you
the percent composition
the molar ratio
the amount of product
the molar mass
30s
• Q5
Stoichiometry is based on the
Law of Conservation of Matter
molar mass
conversons
30s
• Q6
What is a limiting reactant?
is the reactant the is "left over"
is always oxygen
does not react
the reactant that "runs out' first
30s
• Q7
What is an excess reactant?
The reactant that is "left over".
the reactant that "runs out" first
the reactant that reacts last
the reactant that dos not react
30s
• Q8
Which determines how much product you can make?
the molar ratio
the balanced equation
the limiting reactant
the molar mass
30s
• Q9
A solid mass of 250 g is mixed with 100 g of a solution. A chemical reaction takes place and a gas is produced. The final mass of the mixture is 200g. How much gas was released into the air?
250 g
100 g
200 g
150 g
30s
• Q10
When calculating percent yield, the theoretical yield is
what you got in the lab
the percentage
the total of all the reactants
What you were supposed to get according stoichiometry
30s
• Q11
When calculating percent yield the actual amount would be
the measurement you got in lab
the amount you got using stoichiometry
the molar mass
the percentage
30s
• Q12
What is the equation of percent yield?
part/whole X 100
actual yield/ theoretical yield X 100
theoretical yield/actual yield X 100
whole/part X 100
30s

Teachers give this quiz to your class