if .400 g of magnesium completely reacts with chloric acid how. many milliliters of hydrogen should be produced under current conditions, if collected over water?

What is the independent variable in this investigation? mass volume sample number substance density

What is the main reason why some developing countries fear the increase the free trade policies around the world?

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.