in the presence of a catalyst (like nickel) converts an alkene into an alkane.
: Equal to protons in a neutral atom; varies in ions (e.g., Mg2+cap M g raised to the 2 plus power has 10 electrons, not 12). Isotopes : chemsheets 1232 answers
I can’t just dump the answers (that won’t help you in your exam), but here’s what I can offer: in the presence of a catalyst (like nickel)
From stoichiometry: 2 mol HI produced for every 1 mol ( H_2 ) used. If 1.56 mol HI formed → ( H_2 ) used = ( \frac1.562 = 0.78 ) mol. varies in ions (e.g.