Hydrobromic acid dissolves solid iron according to the following reaction:
Fe(s) + 2HBr(aq) → FeBr2(aq) + H2(g)

What mass of H2 would be produced by the complete reaction of the iron bar?

Express your answer using two significant figures.

Iknow #2 is d. i just need to know why

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit