How is a chemical equation different from a chemical formula?

Explanation:

A chemical formula is the combination of atomic symbols that designate a particular chemical compound, or a substance with two or more different elements.  The formula shows which type and how many of each element makes up that specific compound

an equation is something where u find the answers or.. like algebra,, kinda..

but a formula is what u use to like.. find pressure, or are.. so something u use to find something else..

Explanation:

answer: c.

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.