18

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Identify the cycle pictured.

• The Water cycle

• The Carbon cycle

• The Nitrogen cycle

• The Phosphorus cycle.

Tags

NGSS.MS-LS2-3

What is the atomic number of Argon?

• 16

• 17

• 18

• 19

How many electrons are present in a neutral atom of Argon?

• 16

• 17

• 18

• 19

Which element has an atomic mass of approximately 18 amu?

• Helium

• Neon

• Argon

• None of the above

What is the molar mass of water (H2O) in g/mol?

• 16

• 17

• 18

• 19

In the equation @@ ext{C}_6 ext{H}_{12} ext{O}_6 + 6 ext{O}_2 ightarrow 6 ext{CO}_2 + 6 ext{H}_2 ext{O}@@, how many moles of water are produced?

• 16

• 17

• 18

• 19

Tags

NGSS.MS-PS1-5

What is the freezing point of water in degrees Celsius?

• 0

• 18

• 32

• 100

Which of the following is the correct formula for calculating the number of moles?

• All of the above

What is the pH of a neutral solution at 25°C?

• 0

• 7

• 14

• 18