Balancing Chemical Reactions, Moles, Stoichiometry

Balancing Chemical Reactions, Moles, Stoichiometry

11th - 12th Grade

22 Qs

quiz-placeholder

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Balancing Chemical Reactions, Moles, Stoichiometry

Balancing Chemical Reactions, Moles, Stoichiometry

Assessment

Quiz

Science

11th - 12th Grade

Practice Problem

Hard

NGSS
HS-PS1-7

Standards-aligned

Created by

Charles Martinez

FREE Resource

22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the mole ratio of H2O to H3PO4 in the following chemical equation?   P4O10 + 6 H2O --> 4 H3PO
6:4
4:6
1:3
3:1

Tags

NGSS.HS-PS1-7

2.

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

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
6.7 mol
1.0 mol
10.1 mol
4.5 mol

Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first thing you must do to solve a stoichiometry problem?
Write a Balanced Equation
Panic
Write an Unbalanced Equation
Ask for help

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False. You must convert grams to moles to do stoichiometry.
True
False

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?
256 g of O2
576 g of O2
288 g O2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many molecules are in 1 mole of CO2?
4.6 molecules
4.6 grams
6.02 x 10 23 molecules
1.806x 10 24 atoms

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