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HN Midterm Review #3

HN Midterm Review #3

Assessment

Flashcard

Chemistry

11th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Student preview

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a limiting reactant?

Back

The limiting reactant is the substance that is completely consumed in a chemical reaction, limiting the amount of product formed.

2.

FLASHCARD QUESTION

Front

How do you determine the limiting reactant in a reaction?

Back

To determine the limiting reactant, calculate the moles of each reactant, then use stoichiometry to find which reactant produces the least amount of product.

3.

FLASHCARD QUESTION

Front

What is the balanced equation for the combustion of B2H6?

Back

B2H6 + 3O2 -> 2HBO2 + 2H2O.

4.

FLASHCARD QUESTION

Front

What is the molar mass of O2?

Back

The molar mass of O2 is 32 g/mol.

5.

FLASHCARD QUESTION

Front

How do you calculate the mass of a reactant needed in a reaction?

Back

Use the balanced chemical equation to find the mole ratio, then convert moles to grams using the molar mass.

6.

FLASHCARD QUESTION

Front

What is a cation?

Back

A cation is an ion with a positive charge, formed when an atom loses one or more electrons.

7.

FLASHCARD QUESTION

Front

What is the molar mass of CH4?

Back

The molar mass of CH4 (methane) is approximately 16 g/mol.

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