Stoich Practice

Stoich Practice

10th Grade

10 Qs

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Stoich Practice

Stoich Practice

Assessment

Quiz

Chemistry

10th Grade

Easy

NGSS
HS-PS1-7

Standards-aligned

Created by

Rebecca King

Used 47+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 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

2.

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

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?

0.85 g
290 g
450 g
870 g

Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium with excess water according to the following reaction?

1Mg + 2H2O --> Mg(OH)2 + H2

62L

65L

31L

124L

5.

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

6.

MULTIPLE CHOICE QUESTION

5 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

5 mins • 1 pt

For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?

3mol Mg / 2 mol Fe
2 mol Mg/ 3 mol Fe
1 mol Fe/ 2 mol Fe
3 mol MgO / 2 mol Fe

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