Chem Final Review

Chem Final Review

9th - 12th Grade

46 Qs

quiz-placeholder

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Chem Final Review

Chem Final Review

Assessment

Quiz

Science

9th - 12th Grade

Practice Problem

Easy

NGSS
MS-PS1-1, HS-PS1-7, HS-PS1-1

+6

Standards-aligned

Created by

Clara Almeida

Used 18+ times

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46 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The mass number is equal to

the sum of the number of the neutrons and electrons.

the sum of the number of protons, neutrons, and electrons.

the sum of the number of the electrons and protons.

the sum of the number of protons and neutrons.

the number of protons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A chemical change

occurs when baking soda is dissolved in water.

occurs when methane gas is burned.

occurs when ice melts.

occurs when paper is shredded

occurs when a rubber band is stretched.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a solution has a temperature of  55 K, what is its temperature in degrees Celsius?

12.8°C

-218°C

155°C

328°C

131°C

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following represents a physical property?

Sodium metal is extremely reactive with chlorine gas.

Neon has an unreactive nature.

Mercury is a silvery liquid at room temperature.

Methane is highly flammable.

Copper has a tendency to "rust."

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of Kr are contained in 398 mg of Kr?

33.4 mole Kr

1.19 × 10-4 moles Kr

2.99 × 10-3 moles Kr

4.75 × 10-3 moles Kr

2.11 × 10-4 moles Kr

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Read the temperature with the correct number of significant figures.

87.2°C

87°C

87.2000°C

87.20°C

87.200°C

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the volume (in cm3) of a  43.6 g piece of metal with a density of  2.71 g/cm3?

22.3

19.5

4.30

3.33

16.1

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