H2O + C --> H2 + CO2 1. Balance the equation,
2. what type reaction is this

A) 4:2:4:2
Decomposition

B) 2:1:2:1
Double Replacement

C) 1:1:1:2
Single Replacement

D) 2:1:2:1
Single Replacement

B

Explanation:

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.

i think that the answer is c