Stoichiometry Test

Stoichiometry Test

10th Grade

15 Qs

quiz-placeholder

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Stoichiometry Test

Stoichiometry Test

Assessment

Quiz

Chemistry

10th Grade

Medium

Used 3+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Given the equation:

2NaClO3 (s) → 2NaCl (s) + 3O2 (g)


When 2.00 moles of NaClO3 react, how many grams of O2 is produced?

56 g of O2

96 g of O2

64 g O2

32 g O2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

___KNO3 → ___KNO2 + ___O2

What coefficients are needed to balance the reaction?

2, 2, 1

2, 3, 2

1, 2, 2

1, 3, 1

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from  6 moles H2

4 moles Fe
6 moles Fe
9 moles Fe
2 moles Fe

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

2H2 + O2 → 2H2O

How many grams of H2O can be produced from 3.91 g of O2?

1.905

4.4

2.2

1.1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the molar mass of (NH4)2CO3 ?

144 g
138 g
96 g
78 g

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

For the reaction represented by the equation Cl2 + 2KBr → Br2 + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide?

749 g
225 g
479 g
814 g

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first thing you must do to solve a stoichiometry problem?

Make sure the chemical reaction is Balanced

Panic

Make sure the Equation is Unbalanced

Multiple by Avogadro's Number

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