Hydrogen and oxygen react under a specific set of conditions to produce water according
to the equation
2 H2(g) + O2(g) −→ 2 H2O(g).
How much hydrogen would be required to
produce 8 mol of water?
1. 6.5

2. 5.8

3. 2.8

4. 9.9

5. 6.8

6. 5.5

7. 8

8. 3.7

9. 8.9

10. 9.1

The answer to your question is 3 moles

Explanation:

Data

moles of hydrogen = ?

moles of water = 3

Chemical reaction

                          2H₂  +  O₂   ⇒   2 H₂O

To answer this question we can use proportions and the coefficients of each molecule.

                2 moles of Hydrogen 2 moles of water

                x                                   3 moles of water

                x = (3 x 2)/2

                x = 6/2

               x = 3 moles of hydrogen

HOPE THIS HELPS YOU

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.