Polyatomic Ions

What does the prefix 'poly' mean?

• One

• Two

• Many

• Few

What is a polyatomic ion?

• An ion with one atom

• An ion with two atoms

• An ion with many atoms

• An ion with no atoms

What is the charge of lithium (Li) in the given example?

• +1

• -1

• +2

• -2

What is the chemical formula for lithium sulfate formed by criss-crossing the charges of lithium and sulfate?

• LiSO4

• Li2SO4

• Li(SO4)2

• Li2(SO4)3

In the criss-cross method, what do you do with the charges of the ions?

• Add them together

• Subtract them

• Criss-cross them to the opposite ion

• Ignore them

How many calcium atoms are present in the compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many manganese atoms are present in the compound?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

How many oxygen atoms are present in the compound?

• 4

• 6

• 8

• 10

Tags

NGSS.HS-PS1-7

What is the product of the reaction between Ni²⁺ and NO₃⁻?

• NiNO₃

• Ni(NO₃)₂

• Ni₂(NO₃)₃

• Ni₃(NO₃)₂

What is the product of the reaction between Ti³⁺ and PO₄³⁻?

• TiPO₄

• Ti₃(PO₄)₂

• Ti₂(PO₄)₃

• Ti(PO₄)₃