Unit 5 Review - Stoichiometry

Unit 5 Review - Stoichiometry

Assessment

Flashcard

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

In a chemical reaction, the mass of reactants is equal to the mass of products. What principle does this statement illustrate?

Back

Law of Conservation of Mass

2.

FLASHCARD QUESTION

Front

What is the theoretical yield in a chemical reaction?

Back

The maximum amount of product that could be obtained from a given amount of reactants.

3.

FLASHCARD QUESTION

Front

Given the reaction: 2 KClO3 → 2 KCl + 3 O2, how many moles of oxygen are produced from 6.7 moles of KClO3?

Back

10.1 mol of O2

4.

FLASHCARD QUESTION

Front

In the balanced reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe, what is the mole ratio of MgO to Fe?

Back

3 mol MgO / 2 mol Fe

5.

FLASHCARD QUESTION

Front

In the combustion reaction CH4 + 2 O2 → CO2 + 2 H2O, how many moles of carbon dioxide are produced from 110 g of CH4?

Back

6.85 mol of CO2

6.

FLASHCARD QUESTION

Front

What is stoichiometry?

Back

The calculation of reactants and products in chemical reactions.

7.

FLASHCARD QUESTION

Front

Define molar mass.

Back

The mass of one mole of a substance, usually expressed in grams per mole (g/mol).

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