Station 1 Determining the charges of anions and cations

What is the charge of a Cation in the compound PbCrO4?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In PbCrO4, lead (Pb) typically has a +2 charge, while chromate (CrO4) has a -2 charge. To balance the charges, the cation (Pb) must have a charge of +2, making the correct answer 2.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of an Cation in the compound ZnSO4?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In ZnSO4, zinc (Zn) forms a cation with a +2 charge. This is because zinc typically loses two electrons to achieve a stable electron configuration, resulting in a cation with a charge of 2.

Tags

NGSS.HS-PS1-2

What is the charge of an Cation in the compound Al(SCN)(3)?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In Al(SCN)3, the SCN ion has a charge of -1. With three SCN ions, the total negative charge is -3. To balance this, Al must have a charge of +3, making it a cation with a charge of 3.

Tags

NGSS.HS-PS1-1

What is the charge of an Cation in the compound Co(2)Se(3)?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In Co(2)Se(3), cobalt (Co) has a +3 charge to balance the -2 charge from each of the three selenide ions (Se). Therefore, the charge of the cation (Co) in this compound is +3.

Tags

NGSS.HS-PS1-1

What is the charge of a Anion in the compound CoP?

• -1

• -2

• -3

• -4

• -5

Answer explanation

In the compound CoP, cobalt (Co) typically has a +3 charge, while phosphorus (P) is in the form of an anion. To balance the charges, the anion must have a -3 charge, making the correct answer -3.

Tags

NGSS.HS-PS1-1

What is the charge of an Anion in the compound Ca(3)(PO3)(2)?

• -1

• -2

• -3

• -4

• -5

Answer explanation

In the compound Ca(3)(PO3)(2), the phosphate ion (PO3) has a charge of -3. Since there are two phosphate ions, the total negative charge contributed by anions is -6, balancing the +6 from three calcium ions.

Tags

NGSS.HS-PS1-1

What is the charge of a Cation in the compound Be(C2H3O2)(2)?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In Be(C2H3O2)2, the acetate ion (C2H3O2) has a charge of -1. Since there are two acetate ions, the total negative charge is -2. To balance this, beryllium (Be) must have a charge of +2, making it a cation with a charge of 2.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of a Anion in the compound FeCrO4?

• -1

• -2

• -3

• -4

• -5

Answer explanation

In FeCrO4, the iron (Fe) typically has a +2 charge, and chromium (Cr) has a +6 charge. To balance the charges, the four oxygen atoms (O) contribute a total of -8. Thus, the anion (CrO4) must have a charge of -2.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of a Cation in the compound MgS?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In MgS, magnesium (Mg) has a charge of +2 as it loses two electrons to achieve a stable configuration. Therefore, the charge of the cation (Mg) in the compound MgS is 2.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the charge of an Cation in the compound Li(2)CrO4?

• 1

• 2

• 3

• 4

• 5

Answer explanation

In Li(2)CrO4, lithium (Li) has a +1 charge. Since there are two lithium ions, they contribute +2 total charge. To balance the -2 charge from CrO4, the cation must have a charge of +1, making the correct answer 1.

Tags

NGSS.HS-PS1-1