What two types of compounds is water especially good at dissolving?

Answer:

a) Let's balance the chemical equation for the reaction between HCl and HNO3 to form NOCl, Cl2, and H2O:

First, write the unbalanced equation:

HCl + HNO3 → NOCl + Cl2 + H2O

Now, balance it step by step:

1. Balance the atoms other than hydrogen and oxygen:

HCl + HNO3 → NOCl + Cl2 + H2O

1 1 1

2. Balance the oxygen atoms by adding water (H2O):

HCl + HNO3 → NOCl + Cl2 + H2O

1 1 1 +1

3. Balance the hydrogen atoms by adding HCl on the left side:

HCl + HNO3 → NOCl + Cl2 + H2O

1 1 +1 1 +1

4. Balance the chlorine atoms by adding Cl2 on the left side:

HCl + HNO3 → NOCl + Cl2 + H2O

1 1 +1 1 +1

Now, the equation is balanced.

b) Let's balance the chemical equation for the reaction between CO and I2O5 to form CO2 and I2:

First, write the unbalanced equation:

CO + I2O5 → CO2 + I2

Now, balance it step by step:

1. Balance the atoms other than carbon and oxygen:

CO + I2O5 → CO2 + I2

1 1

2. Balance the oxygen atoms by adding CO2 on the left side:

CO + I2O5 → CO2 + I2

1 1 +2

3. Balance the carbon atoms by adding CO on the left side:

CO + I2O5 → CO2 + I2

1 +1 +2

4. Balance the iodine atoms by adding I2 on the left side:

CO + I2O5 → CO2 + I2

1 +1 +2 +5

Now, the equation is balanced.

Answer:

here hope it helps

Explanation:

covalent bonds

Answer: Option (d) is the correct answer.

Explanation:

A reaction in which heat is absorbed by the substance or reactant molecules is known as an endothermic reaction. In this process energy of reactants is less than the energy of products.

Whereas a reaction in which heat is released by the substance or reactant molecules is known as an exothermic reaction. In this process energy of reactants is more than the energy of products.

For example, when ice is warmed then heat is absorbed by ice molecules due to which there occurs decrease in its intermolecular forces. As a result, ice changes into water.

Therefore, we can conclude that if ice is warmed and becomes a liquid, then it is an endothermic process.