F nitrogen and hydrogen combine in a combustion reaction, what would the product of the reaction be? CH4 + 2O2 →
2 + 2H2O

Remember, when working with combustion reactions the products are almost ALWAYS
CO2 + H2O.

Your equation should now be:

CH4 + 2 O2 -> CO2 + 2 H2O

Note: this equation is balanced

If we’re talking about combining Nitrogen and Hydrogen in a reaction, it would synthesize to form ammonia (NH3)

The chemical equation for that would be:

N2 + H2 -> NH3

Balanced chemical equation:

N2 + 3 H2 -> 2 NH3

(If you’re wondering where the 2’s come from in N2 and H2, it’s because they are known as diatomic elements.

Diatomic elements are:

Hydrogen
Oxygen
Bromine
Fluorine
Iodine
Nitrogen and
Chlorine

•To make it easier to memorize remember the acronym, HOBrFINCl.

•When these elements are seen individually in a chemical equation the 2 at the bottom (aka subscript) is placed.

Hope this helps. If you have any questions please let me know in the comments.

Answer:

9.9 years

step-by-step explanation:

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.