Part A What is the oxidation state of an individual carbon atom in CaCO3? Expres

Question

Part A

What is the oxidation state of an individual carbon atom in CaCO3?

Express the oxidation state numerically (e.g., +1)

Part B

What is the oxidation state of an individual nitrogen atom in NH4OH?

Express the oxidation state numerically (e.g., +1)

Part C

What is the oxidation state of an individual phosphorus atom in PO43?

Express the oxidation state numerically (e.g., +1).

Part D

What is the oxidation state of each individual carbon atom in C2O42?

Express the oxidation state numerically (e.g., +1).

Explanation / Answer

Part A

What is the oxidation state of an individual carbon atom in CaCO3?

Ca has +2 change

O has -2 charge

So,

to balance charge, C must have +4

Answer: +4

Part B

What is the oxidation state of an individual nitrogen atom in NH4OH?

OH has -1 charge

NH4+ will have +1 charge

In this H has +1 charge

So, N must have -3 charge

Answer: -3

Part C

What is the oxidation state of an individual phosphorus atom in PO43?

O has -2 charge and there are 4 O atom. SO, net charge of O = -8

Net charge is -3

Remaining +5 charge is balanced by P

So, P must be +5

Answer: +5

Part D

What is the oxidation state of each individual carbon atom in C2O42?

O has -2 charge and there are 4 O atom. SO, net charge of O = -8

Net charge is -2

So, C2 must be +6

Charge on each C is +3

Answer: +3

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