Unit 8 Part : Mole Ratio

Presentation

•

Chemistry

•

9th Grade

•

Medium

•

NGSS

HS-PS1-7

Standards-aligned

Allyson Holloway

Used 7+ times

FREE Resource

8 Slides • 9 Questions

Multiple Choice

Mole ratios are obtained from the

balanced chemical equation

periodic table

molar mass

Multiple Choice

What coefficients are needed to balance the following chemical equation?

__Zn + __HCl→ __ZnCl₂ + __H₂

1,1,1,1

1,2,1,1

2,1,2,2

2,1,2,1

Multiple Choice

What can be determined from a balanced chemical equation?

Mole ratio of any two substances in the reaction

Energy released in the reaction.

Electron configuration of all elements in the reaction.

Mechanism involved in the reaction.

Multiple Choice

3 Mg + 1 Fe₂O₃ → 3 MgO + 2 Fe
What is the Ratio of moles of Mg 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

Multiple Choice

Where are the numbers for a mole ratio found?

They are part of the chemical formulas for the reactants / products.

They are given in the problem.

They are found on the periodic table for those elements.

They are found as coefficients in the reaction's balanced chemical equation.

Multiple Choice

Which of the following represent a mole ratio between silver nitrate and copper(II) nitrate in the following reaction:
2AgNO₃ + Cu --> Cu(NO₃)₂ + 2Ag

2 mol AgNO₃ / 2 mol Ag

2 mol Ag / 2 mol AgNO₃

2 mol AgNO₃ / 2 mol Cu(NO₃)₂

2 mol AgNO₃ / 1 mol Cu(NO₃)₂

Multiple Choice

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Ethane (C₂H₆) combusts in the above reaction. What is the mole ratio of ethane to oxygen gas?

Multiple Choice

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

If 16 moles of carbon dioxide are formed by this reaction, how many moles of water were also produced?

4 mol H₂O

6 mol H₂O

24 mol H₂O

96 mol H₂O

384 mol H₂O

Multiple Choice

2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

How many moles of ethane (C₂H₆) are required to produce 13.5 moles of water from the above reaction?

4.5 mol C₂H₆

27 mol C₂H₆

40.5 mol C₂H₆

81 mol C₂H₆

162 mol C₂H₆

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