Which of the following is not an example ofa communicable disease?
influenza
A.I.D.S.
chicken pox
or cancer
Cancer is not communicable
N2 + H2----> NH3
N2 + H2----> NH3_______________________
BALANCING EQUATIONS
N2+3H2=2NH3
N2+3H2=2H3
flu and AIDS are communicable diseases
N2+3H2--->2NH3
cancer
To determine the balanced chemical equation for the reaction N2 + H2 → NH3, you need to follow these steps:
Step 1: Write down the unbalanced equation:
N2 + H2 → NH3
Step 2: Determine the number of atoms for each element on both sides of the equation:
On the left side:
N: 2 nitrogen atoms (2 N)
H: 2 hydrogen atoms (2 H)
On the right side:
N: 1 nitrogen atom (1 N)
H: 3 hydrogen atoms (3 H)
Since the number of atoms is not balanced, we need to adjust the coefficients to make them equal on both sides.
Step 3: Balance the equation:
To balance the nitrogen atoms, we need to put a coefficient of 2 in front of NH3.
2N2 + H2 → 2NH3
Now the number of nitrogen atoms is balanced, but the hydrogen atoms are not. There are 6 hydrogen atoms on the right side and only 2 on the left side. To balance the hydrogen atoms, we need to put a coefficient of 3 in front of H2.
2N2 + 3H2 → 2NH3
Now the equation is balanced, with 4 nitrogen atoms and 6 hydrogen atoms on both sides of the equation.
So the balanced equation for the reaction N2 + H2 → NH3 is:
2N2 + 3H2 → 2NH3