Reading Chemical Formulas

What is the coefficient in this chemical formula:

3H₂O

• 1

• 2

• 3

• 4

How many ELEMENTS are in the chemical formula H₂O?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many TOTAL ATOMS are there in the chemical formula H₂O?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many ELEMENTS are there in the chemical formula NaO₂?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Label the parts of the chemical formula

a

b

c

d

Coefficient

Subscript

Compound

Element

The notation used by scientists to show the number and type of atoms present in a molecule, using the atomic symbols and numerical subscripts

• Chemical formula

• Chemical reaction

• Chemistry

• None of the above

Tags

NGSS.MS-PS1-1

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

Correctly fill in the blanks with the information provided.

f

g

h

i

a

b

c

d

e

2 - H Cl

hydrogen nitrogen oxygen

2 - N H

2 - Fe S

H = 1 Cl = 1

3 - H P O

S = 1 O = 3

2 - Ca Co

H = 3 P = 1 O = 4

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

input the correct number of atoms for each element in this compound (C₆H₁₂O₆₎

_Carbon​ (a)  

_Hydrogen​ (b)  

_Oxygen​ (c)  

• 6

• 12

Tags

NGSS.MS-PS1-1

How many total atoms are present in a molecule of rust? ​ (a)  

• 10

• 2

• 3

• 7

Tags

NGSS.MS-PS1-1