Kindly Help Please! Can you write the symbol equations for each of the reactions below:
and Can you balance them?

1) Ethane + Oxygen = Carbon Dioxide + Water

2) Butane + Oxygen = Carbon Dioxide + Water

3) Octane + Oxygen = Carbon Dioxide + water

4) Decane + Oxygen = Carbon Dioxide + Water

thank you!​

1)

2)

3)

4)

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

The balanced chemical reactions will be:

1) Ethane + Oxygen = Carbon Dioxide + Water :

2) Butane + Oxygen = Carbon Dioxide + Water :

3) Octane + Oxygen = Carbon Dioxide + water:

4) Decane + Oxygen = Carbon Dioxide + Water :  

ch3 [ch2]14cooh

explanation:

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3