6NH3 + 2H2BO3-3N2H4 + 2B+ 4H2O+ 2OH-

name of the element oxidized:? name of the element reduced:?
formula of the oxidizing agent:? formula of the reducing agent:?

3N2H4 + 2ClO3-3N2 + 2Cl-+ 6H2O
name of the element oxidized:? name of the element reduced:?
formula of the oxidizing agent:? formula of the reducing agent:?

Consider N and B for 1 and N and Cl for 2.

To determine the element oxidized and reduced in each given chemical equation, as well as the formula of the oxidizing and reducing agents, we need to understand the concepts of oxidation and reduction.

Oxidation is the process in which an atom, ion, or molecule loses electrons, resulting in an increase in its oxidation state. Reduction, on the other hand, is the process in which an atom, ion, or molecule gains electrons, leading to a decrease in its oxidation state.

In each chemical equation, we can identify the element that undergoes a change in oxidation state. The element that loses electrons is oxidized, while the element that gains electrons is reduced.

Let's analyze each equation:

1. 6NH3 + 2H2BO3- -> 3N2H4 + 2B+ + 4H2O + 2OH-

In this equation, nitrogen (N) undergoes a change in oxidation state. It goes from -3 in ammonia (NH3) to 0 in hydrazine (N2H4), resulting in an increase in its oxidation state. Therefore, nitrogen is oxidized.

The boron (B) in H2BO3- goes from +3 to +1 in B+, resulting in a decrease in its oxidation state. Therefore, boron is reduced.

Hence, the element oxidized is nitrogen, and the element reduced is boron.

The formula of the oxidizing agent is H2BO3-, and the formula of the reducing agent is NH3.

2. 3N2H4 + 2ClO3- -> 3N2 + 2Cl- + 6H2O

In this equation, nitrogen (N) undergoes a change in oxidation state. It goes from -2 in hydrazine (N2H4) to 0 in nitrogen gas (N2), resulting in an increase in its oxidation state. Therefore, nitrogen is oxidized.

The chlorine (Cl) in ClO3- goes from +5 to -1 in Cl-, resulting in a decrease in its oxidation state. Therefore, chlorine is reduced.

Hence, the element oxidized is nitrogen, and the element reduced is chlorine.

The formula of the oxidizing agent is ClO3-, and the formula of the reducing agent is N2H4.

In summary:
1. Equations 1:
- Element oxidized: Nitrogen (N)
- Element reduced: Boron (B)
- Oxidizing agent: H2BO3-
- Reducing agent: NH3

2. Equation 2:
- Element oxidized: Nitrogen (N)
- Element reduced: Chlorine (Cl)
- Oxidizing agent: ClO3-
- Reducing agent: N2H4