Chemical Formula Review

What elements are present in the compound : NaClO

• Sodium, Chlorine, Oxygen

• Nitrogen, Carbon, Odium

• Sodium, Carbon, Odium

• Nitrogen, Chlorine, Oxygen

Tags

NGSS.MS-PS1-1

The total elements and atoms are the same for compound : NaClO

• True

• False

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What elements are present in the compound : CHNaO₃

• 3 Carbon, 3 Hydrogen, 3 Sodium, 3 Oxygen

• 1 Carbon, 1 Hydrogen, 1 Sodium, 1 Oxygen

• 1 Carbon, 1 Hydrogen, 1 Sodium, 3 Oxygen

• Non of these

Tags

NGSS.MS-PS1-1

The total number of elements and atoms are the same for compound : CHNaO₃

• True

• False

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What elements are present in the compound :  $CaCO_3$  

• 1 Calcium, 1 Chlorine, 3 Oxygen

• 1 Calcium, 1 Carbon, 3 Oxygen

• 3 Calcium, 3 Carbon, 3 Oxygen

• 3 Calcium, 3 Chlorine, 3 Oxygen

Tags

NGSS.MS-PS1-1

How many atoms are in the compound :  $CaCO_3$  

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-1

Battery acid is compound with a pH level of 0.8. The compound contains 4 atoms of Oxygen, 2 atoms of Hydrogen and 1 atom of Sulfur. Which formula best represents the compound?

• H₂SO₄

• H₄S₂O

• 2(HSO₄)

• HSO₄

Tags

NGSS.MS-PS1-1

Antiperspirant is used to help reduce sweat and body odor. The formula for antiperspirant is  $Al_2Cl\left(OH\right)_5$ . How many elements are present in the compound for antiperspirant? 

• 4

• 13

• 3

• 12

Tags

NGSS.MS-PS1-1

True or False: Subscripts are a number written above AND to the right of a chemical symbol.

• True

• False

True or False: Coefficients are numbers that represent the number of units of each substance taking part in a reaction.

• True

• False