Counting Atoms

Which one is the coefficient 4H₂O?

• 4

• H

• 2

• O

Tags

NGSS.MS-PS1-1

How many Oxygen atoms are in H₂O?

• 1

• 2

• 0

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in H₂SO₄

• 6

• 5

• 7

Tags

NGSS.MS-PS1-1

A subscript is the small number below the element symbol that tells the number of _______ of that element.

• atoms

• protons

• valence electrons

Tags

NGSS.MS-PS1-1

How many Aluminum atoms are in Al₂O₃

• 3

• 5

• 2

Tags

NGSS.MS-PS1-1

How many atoms are present if there is no subscript following the element symbol?

• 0

• 1

• 2

Tags

NGSS.MS-PS1-1

How many Elements are in the compound C₂H₈O

• 2

• 3

• 1

Tags

NGSS.MS-PS1-1

A capital letter or combination of a capital letter and a small letter that is used to represent an element is called a(n) ________

• element

• subscript

• coefficient

Which one is the subscript 4H₂O

• 4

• H

• 2

• O

Tags

NGSS.MS-PS1-1

How many Hydrogen atoms are in 4H₂O?

• 8

• 12

• 4

Tags

NGSS.MS-PS1-1