Midterm Review - Full Length

Midterm Review - Full Length

9th - 10th Grade

105 Qs

quiz-placeholder

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Midterm Review - Full Length

Midterm Review - Full Length

Assessment

Quiz

Chemistry

9th - 10th Grade

Hard

NGSS
HS-PS1-1, MS-PS1-1, HS-PS1-2

+2

Standards-aligned

Created by

Misty Mitchell

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105 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What does the 6 represent?

Atomic mass

atomic number

chemical symbol

element name

Tags

NGSS.HS-PS1-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the number of neutrons in the nucleus of an atom calculated?

Add the number of e- and p+ together
Subtract the number of e- from p+
Subtract the number of p+ from the mass number
Add the mass number to the number of e-

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An atom has an atomic number of 15 and a mass number of 31. How many protons are there in the atom?

15
31
16
47

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
How many protons does this element have?

32
33
34
no way to know

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcium has three different isotopes. One has a mass of 35.00 amu; another has a mass of 41.00 amu; and another has a mass of 40.00 amu. Which isotope is the most abundant of the three?

40.00 amu
41.00 amu
35.00 amu
impossible to tell

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?

41.97 amu
42.19 amu
10.43 amu
40.04 amu

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

2 amu
3 amu
4 amu
5 amu

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