Question

ступени окиснення КCLO3,СuBR2,Сa3(PO3)2

Answer 1

1) КCLO3

2)CuBr2

3)Ca3(PO3)2

 Я думаю так

Answer 2

1) КCLO3

 

K (+)

Cl(+5)

O(-2)

 

2)CuBr2

 

Cu(+2)

Br(-)

 

3)Ca3(PO3)2

 

Ca(+2)

PO3(-3)

 

 

Answer 3

Oxidation States of KCLO3, CuBr2, and Ca3(PO3)2

The oxidation state, also known as the oxidation number, is a concept used in chemistry to describe the charge that an atom would have if all the shared electrons in a compound were assigned to the more electronegative atom. The oxidation state can be positive, negative, or zero.

Let's determine the oxidation states of the elements in the compounds KCLO3, CuBr2, and Ca3(PO3)2.

1. KCLO3: - In KCLO3, potassium chlorate, the potassium ion (K+) has an oxidation state of +1 because it is an alkali metal. - The oxygen atoms (O) in chlorate ions (ClO3-) usually have an oxidation state of -2. - To find the oxidation state of chlorine (Cl), we can set up an equation: (+1) + (x) + (3 * -2) = 0, where x is the oxidation state of chlorine. - Solving the equation, we find that the oxidation state of chlorine in KCLO3 is +5.

2. CuBr2: - In CuBr2, copper(II) bromide, the bromine ions (Br-) usually have an oxidation state of -1. - To find the oxidation state of copper (Cu), we can set up an equation: (2 * -1) + (x) = 0, where x is the oxidation state of copper. - Solving the equation, we find that the oxidation state of copper in CuBr2 is +2.

3. Ca3(PO3)2: - In Ca3(PO3)2, calcium phosphite, the calcium ions (Ca2+) usually have an oxidation state of +2. - The oxygen atoms (O) in phosphite ions (PO3-) usually have an oxidation state of -2. - To find the oxidation state of phosphorus (P), we can set up an equation: (2 * -2) + (x) = 0, where x is the oxidation state of phosphorus. - Solving the equation, we find that the oxidation state of phosphorus in Ca3(PO3)2 is +3.

In summary: - The oxidation state of chlorine in KCLO3 is +5. - The oxidation state of copper in CuBr2 is +2. - The oxidation state of phosphorus in Ca3(PO3)2 is +3.

Please note that these oxidation states are based on general rules and may vary in certain compounds or under specific conditions.