Why is Neon in the same group of the periodic table as Helium?

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:

Energy exists in different forms, all of which can be classified as either potential energy or kinetic energy. Potential energy is energy stored in an object due to its position or arrangement. Kinetic energy is energy of an object due to its movement - its motion.

Explanation:

Answer:The law of the conservation of energy states that energy is neither created nor destroyed. Instead, it is simply transferred from one type of energy to another, or from one form of energy to another. The difference between mechanical energy and kinetic energy is that kinetic energy is a type of energy, while mechanical energy is a form of energy.

Answer: The description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.

Explanation:

Activation energy is defined as the minimum amount of required energy so that a chemical reaction can initiate.

As a result, it provides the reactants with certain amount of energy so that they will get the necessary amount of energy to break their bond and then  form new bonds.

Thus, we can conclude that the description it provides reactants with sufficient energy for bonds to break and reform best explains the role of activation energy in a chemical reaction.