PS Sem 1 Final Part Three

PS Sem 1 Final Part Three

Assessment

Flashcard

Science

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is combustion?

Back

A chemical reaction that occurs in the presence of oxygen, producing heat and light, typically involving the burning of a fuel.

2.

FLASHCARD QUESTION

Front

What does oxidation refer to in modern chemistry?

Back

Any reaction where electrons are lost.

3.

FLASHCARD QUESTION

Front

In the reaction N2 + 3H2 → 2NH3, how many moles of hydrogen are used?

Back

3 moles of hydrogen.

4.

FLASHCARD QUESTION

Front

What does concentration describe?

Back

The actual amount of solute for a given amount of solution.

5.

FLASHCARD QUESTION

Front

Which types of solutions conduct electricity?

Back

Both acidic and basic solutions.

6.

FLASHCARD QUESTION

Front

What is the definition of a solute?

Back

A substance that is dissolved in a solution.

7.

FLASHCARD QUESTION

Front

What is a solvent?

Back

The substance in which the solute is dissolved, typically present in a greater amount.

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