Preap Chemical Reactions

Preap Chemical Reactions

10th Grade

10 Qs

quiz-placeholder

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Preap Chemical Reactions

Preap Chemical Reactions

Assessment

Quiz

Chemistry

10th Grade

Hard

NGSS
HS-PS1-7, HS-PS1-2

Standards-aligned

Created by

Charles Martinez

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Consider the general balanced equation for a single replacement reaction shown below:
A + 2BC → AC2 + B2
If 5.0moles of A are combined with 4.0moles of BC, what is the maximum number of  moles of B2 that can form?
2.0 moles of B2
4.0 moles of B2
5.0 moles of B2
1.0 moles of B2

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Consider the general balanced equation for a single replacement reaction shown below:
A + 2BC → AC2 + B2
The molar mass of B is 1.0grams. If 2.0 moles of A and 2.0 moles of BC are mixed and allowed to react, what theoretical mass of B2 can form?
2.0 grams of B2
1.0 grams of B2
4.0 moles of B2
3.0 moles of B2

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

In the chemical reaction
2H2O  → 2H2 + O2
twice as much H2 as O2 will be produced.
equal amounts of H2 and O2 will be produced.
twice as much O2 as H2 will be produced.
there is no way to know how much of each will be produced.

Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Ammonia (NH3) is widely used as a fertilizer and in many household cleaners. How much ammonia is produced when 6 mol of hydrogen gas react with an excess of nitrogen gas in a synthesis reaction?
4 mol
6 mol
3 mol
9 mol

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The complete combustion of 1.5 moles of methane (CH4) would require how much O2?
3.0 mol
1.5 mol
0.75 mol
1.0 mol

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When nitrogen and oxygen gases react in the cylinder of an automobile engine, nitric oxide gas (NO) is formed. After it escapes into the atmosphere with the other exhaust gases, the nitric oxide then reacts with oxygen to produce nitrogen dioxide gas, one of the precursors of acid rain.
N2 + O2  
→ 2NO
2NO + O2 → 2NO2
If 46g of NO2 are formed, how much nitrogen must have reacted in the engine?
14g N2
28g N2
7g N2
46g N2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Consider the reaction:
CH4 + 2O2 → CO2 + 2H2O
Select the true statement:
4.00 moles of O2 can react to produce 4.00moles of CO2.
8.00 moles of O2 can react to produce 144.0 g of H2O.
88.01 g of CO2 could be produced upon reaction of 64.00 g of O2.
4.00 moles of CH4 will react with 2.00moles of O2.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

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