Reactions Test Review

Reactions Test Review

Assessment

Flashcard

Science

10th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a balanced chemical reaction?

Back

A chemical reaction is balanced when both sides have the same number of atoms.

2.

FLASHCARD QUESTION

Front

Which substance is more acidic than lemon juice?

Back

Hydrochloric acid is more acidic than lemon juice.

3.

FLASHCARD QUESTION

Front

What is fission in nuclear chemistry?

Back

Fission is the splitting of an atom into two or more parts that releases a lot of energy.

4.

FLASHCARD QUESTION

Front

What is the half-life of iodine-131?

Back

The half-life of iodine-131 is 8 days.

5.

FLASHCARD QUESTION

Front

What is the half-life of an isotope that decays in 10 seconds?

Back

The half-life of this isotope is 10 seconds.

6.

FLASHCARD QUESTION

Front

Define pH.

Back

pH is a scale used to measure the acidity or basicity of a solution.

7.

FLASHCARD QUESTION

Front

What does a pH less than 7 indicate?

Back

A pH less than 7 indicates an acidic solution.

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