Question

1)... + ...= Al(OH)³+ KNO³ 2)... + НВr=.....+ Н2↑3)СаО + ... = Са(ОН)²4)FeO + ... = FeSO4​

Answer 1

Ответ:

1.) 3KOH + Al(NO3)3 = Al(OH)3 + 3KNO3

2.) 2HBr + Ca = CaBr2 + H2↑

3.) CaO + H2O = Ca(OH)2

4.) FeO + H2SO4 = FeSO4 + H2↑

Answer 2

Відповідь:

Пояснення:

Answer 3

Let's balance the chemical equations you've provided:

1. ... + ... = Al(OH)₃ + KNO₃

To balance this equation, we need to ensure that the number of each type of atom on the left side (reactants) is equal to the number on the right side (products).

Let's break it down step by step:

• Aluminum (Al): There is one Al atom on the right side, so we need one on the left side.
• Oxygen (O): There are three oxygen atoms in Al(OH)₃, and none on the right side. To balance this, we can put three oxygen atoms on the left side by using a reactant that contains oxygen.
• Hydrogen (H): There are three hydrogen atoms in Al(OH)₃, and none on the right side. To balance this, we can put three hydrogen atoms on the left side by using a reactant that contains hydrogen.
• Potassium (K): There is one potassium atom on the right side, so we need one on the left side.
• Nitrogen (N): There is one nitrogen atom in KNO₃, and none on the left side. We need one nitrogen atom on the left side.

Now, let's choose reactants to balance the equation:

Al + 3H₂O = Al(OH)₃ + KNO₃

2. ... + HBr = ... + H₂↑

To balance this equation, we need to ensure that the number of each type of atom on the left side is equal to the number on the right side.

• Hydrogen (H): There are two hydrogen atoms on the right side in H₂, so we need two on the left side.
• Bromine (Br): There is one bromine atom on the left side in HBr, so we need one on the right side.

Balanced equation:

H₂ + HBr = H₂ + H₂↑

3. CaO + ... = Ca(OH)₂

To balance this equation, we need to ensure that the number of each type of atom on the left side is equal to the number on the right side.

• Calcium (Ca): There is one calcium atom on each side, so it's already balanced.
• Oxygen (O): There is one oxygen atom on the left side and two on the right side. We need to add one more oxygen atom on the left side.

Balanced equation:

CaO + H₂O = Ca(OH)₂

4. FeO + ... = FeSO₄

To balance this equation, we need to ensure that the number of each type of atom on the left side is equal to the number on the right side.

• Iron (Fe): There is one iron atom on each side, so it's already balanced.
• Oxygen (O): There is one oxygen atom on the left side and four on the right side. We need to add three more oxygen atoms on the left side.

Balanced equation:

FeO + 3H₂SO₄ = FeSO₄ + 3H₂O

These are the balanced chemical equations for the given reactions.