The combustion of acetylene gas is represented by this equation: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g) How many moles of H2O are produced when 64.0 g C2H2 burn in oxygen?

M. M

H2O = 18.02 g/mol

C2H2 = 26.04 g/mol

2.46 moles H2O
5.13 moles H2O
4.92 moles H2O
2.00 moles H2O

Approximately .

Explanation:

Make use of the molar mass data () to calculate the number of moles of molecules in that of :

.

Make sure that the equation for this reaction is balanced.

Coefficient of in this equation: .

Coefficient of in this equation: .

In other words, for every two moles of that this reaction consumes, two moles of would be produced.

Equivalently, for every mole of that this reaction consumes, one mole of would be produced.

Hence the ratio: .

Apply this ratio to find the number of moles of that this reaction would have produced:

.

s too much pool water may lead to chlorine poisoning. the concentration of chlorine in public drinking water is extremely low and not harmful to human health. sooo yeahh

explanation:

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).