chemistry fall exam review

chemistry fall exam review

Assessment

Flashcard

Chemistry

10th - 12th 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 double bond in chemistry?

Back

A double bond is a type of chemical bond where two pairs of electrons are shared between two atoms, resulting in a stronger bond than a single bond.

2.

FLASHCARD QUESTION

Front

How many double bonds are present in the Lewis structure of carbon dioxide (CO2)?

Back

Two.

3.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, often accompanied by gas release, color change, or temperature change.

4.

FLASHCARD QUESTION

Front

What happens when sulfuric acid is combined with sugar?

Back

It undergoes a chemical change, releasing gas and forming a tall, black column.

5.

FLASHCARD QUESTION

Front

What is the composition of the nucleus of Rubidium-87?

Back

Rubidium-87 has 37 protons and 50 neutrons.

6.

FLASHCARD QUESTION

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

7.

FLASHCARD QUESTION

Front

How does atomic radius change across a period in the periodic table?

Back

Atomic radius decreases from left to right across a period due to increased nuclear charge pulling electrons closer.

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