Counting atoms quick rev

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Tags

NGSS.MS-PS1-1

The red numbers in the image below represent ________

• subscripts

• coefficients

• I don't know, and don't want to try

• None of the answers are correct

Tags

NGSS.HS-PS1-7

The blue numbers in the image below represent ________

• I don't know, and don't want to try

• coefficients

• subscripts

• none of the answers are correct

Tags

NGSS.MS-PS1-1

Which of the following shows the elements with correct numbers of ATOMS for this molecule

H₂SO₄

• H = 2, S = 4, O = 4

• H = 2, S = 1, O = 4

• H = 8, S = 4, O = 4

• H = 2, SO = 4

Tags

NGSS.MS-PS1-1

How many O's are in Al₂(SO₄)₃

• 4

• 12

• 7

• 24

Tags

NGSS.MS-PS1-1

How many atoms of oxygen(O) are in

3Fe₂O₃

• 6

• 9

• 1

• 3

Tags

NGSS.MS-PS1-1

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes

• neutrons, isotopes, and electrons

• positives, negatives, and electrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Which of the following chemical formulas represents a compound? 

• C₃

• O₂

• CH₃CHO

• H₂

Tags

NGSS.MS-PS1-1

How many elements are in the following? (Different types of atoms)
C₂H₈O

• 2
• 1
• 3
• 0

Tags

NGSS.MS-PS1-1

How many atoms of Hydrogen are in this compound

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1