Stoichiometry

Stoichiometry

10th Grade

15 Qs

quiz-placeholder

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Stoichiometry

Stoichiometry

Assessment

Quiz

Chemistry

10th Grade

Medium

112.43.c.9.C

Standards-aligned

Created by

Juan Hernandez

Used 132+ times

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15 questions

Show all answers

1.

DRAG AND DROP QUESTION

1 min • 1 pt

1 N2 + 3 H2 → 2NH3

How many moles of hydrogen, H2, are needed to react with 2.00 mol of nitrogen, N2?

​ (a)   mol N2 ÷ ​ (b)   mol N2 x ​ (c)   mol H2 = ​ (d)   mol H2

2.00
1
3
6

Tags

112.43.c.9.C

2.

MATH RESPONSE QUESTION

1 min • 1 pt

2H2 + O2 → 2H2O

How many moles of water, H2O, can be produced if 8.00 moles of H2 are used? (Show your work and answer)

Mathematical Equivalence

ON

Tags

112.43.c.9.C

3.

DROPDOWN QUESTION

1 min • 1 pt

3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe

Identify the mole ratios for the following pairs:

​ ​ ​ (a)   Mg : ​ (b)   Fe

​ (c)   Fe2O3 : ​ (d)   Fe

​ 1 Fe2O3 : ​ (e)   MgO

3
2
1

Tags

112.43.c.9.C

4.

DRAG AND DROP QUESTION

1 min • 1 pt

1 Cl2 + 2 KBr → 1 Br2 + 2 KCl

How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?

​ (a)   + 35 = 74g x 2 = 148g 39 + ​80 = ​ (b)   g x 2 = 238g

​ (c)   / ​ (d)   x 148 = ​ (e)   g

39
119
356
238
221

Tags

112.43.c.9.C

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1 CH4 + 2 O2 → 1 CO2 + 2 H2O

How many moles of carbon dioxide (CO2) are produced from the combustion of 110.0 g of CH4 (molar mass = 16 g)?

13.7 mol

2.75 mol

6.85 mol

6.11 mol

Tags

112.43.c.9.C

6.

DROPDOWN QUESTION

1 min • 1 pt

1 B2H5 + 3 O2 → 2 HBO2 + 2 H2O

What mass of O2 will be needed to burn 36.1 g of B2H5?

16 x 2 = ​ (a)   x 3 = 96 g (11 x 2) + (1 x 5) = 27 g

​ (b)   / ​ (c)   x ​ (d)   = ​ (e)   g

32
36.1
27
96
128.356

Tags

112.43.c.9.C

7.

DRAG AND DROP QUESTION

1 min • 1 pt

Balance the following reaction:

​ (a)   CaC2 + ​ (b)   H2O → ​ (c)   C2H2 + ​ (d)   Ca(OH)2

1
2

Tags

112.43.c.9.C

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