Chemistry STAAR Questions

Chemistry STAAR Questions

8th Grade

15 Qs

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Chemistry STAAR Questions

Chemistry STAAR Questions

Assessment

Quiz

Science

8th Grade

Practice Problem

Hard

NGSS
MS-PS1-5, MS-PS1-1, HS-PS1-1

+3

Standards-aligned

Created by

Lisa Thompson

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which statement accurately describes the atoms of a specific element?

An indium‚ In‚ atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus.

A scandium‚ Sc‚ atom contains 45 electrons outside the nucleus and 21 neutrons inside the nucleus.

An aluminum‚ Al‚ atom contains 27 electrons and 27 protons inside the nucleus.

A zinc‚ Zn‚ atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus.

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which chemical reaction involves the fewest oxygen atoms?

Media Image
Media Image
Media Image
Media Image

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement correctly describes the location and charge of the electrons in an atom?

The electrons are inside the nucleus and have no charge.

The electrons are outside the nucleus and have no charge.

The electrons are inside the nucleus and have a negative charge.

The electrons are outside the nucleus and have a negative charge.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The table lists some compounds found in foods and their formulas. Based on this information, which of these statements is NOT true?

A molecule of sorbitol contains three more oxygen atoms than a molecule of glutamine does.

A molecule of lactose contains twice as many atoms as a molecule of fructose does.

A molecule of fructose contains four more atoms than a molecule of glutamine does.

A molecule of lactose contains twice as many carbon atoms as a molecule of sorbitol does.

Tags

NGSS.MS-PS1-1

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the total number of protons, neutrons, and electrons in a cadmium, Cd, atom that has a mass number of 112?

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A manufacturer selected a metal to use in producing a lightweight button for clothing. A metal that has a density of 2.71 g/cm3 was selected.

Which of the metals was selected?

Metal 1

Metal 2

Metal 3

Metal 4

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

When an atom loses an electron, it becomes a

positive ion

negative ion

neutral ion

neutral atom

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