Atoms Molecules Compounds

What type of atom is element C?

• Normal atom

• Ion

• Isotope

Tags

NGSS.MS-PS1-1

What is a substance with unique physical and chemical properties that can't be reduced by chemical means.

• an element

• an atom

• a molecule

• a compound

How many Hydrogen atoms are in 4H₂O?

• 6

• 8

• 2

• 4

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in H₂SO₄ ?

• 6

• 5

• 7

• 3

Tags

NGSS.MS-PS1-1

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

• atoms

• valence electrons

• protons

• elements

Tags

NGSS.MS-PS1-1

Which of the following is a compound?

• Co

• O₂

• C

• CO₂

Tags

NGSS.MS-PS1-1

How many Nitrogen atoms are in the in H₂C₃O₄N₅?

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS1-1

How many Aluminum atoms are in Al₂O₃?

• 3

• 2

• 5

• 1

Tags

NGSS.MS-PS1-1

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

• 0

• 2

• only 1

• 1 million

Tags

NGSS.MS-PS1-1

TRUE OR FALSE:
Every compound is a molecule but not every molecule is a compound.

• TRUE

• FALSE