Neptune is mostly made of hydrogen.
Answer:
4
Explanation:
I believe it's 4. An adjective
Answer:
75 and 75 degrees on both
<h3><em>Quartzite is made of the mineral quartz – a hard resistant mineral. Additionally, when the parent material (quartz-rich sandstone) undergoes metamorphic processes of heat and pressure, the resulting rock quartzite is harder than the sandstone due to an increase in density.</em></h3><h3><em>1. Hope this helps, sorry if not tho</em></h3>
Consult the balanced reaction:
O₂ + 2 H₂ ⇄ 2 H₂O
which says you need twice as many moles of H₂ as O₂. So if 1.57 mol O₂ is available, then the reaction would consume 2 × 1.57 = 3.14 mol H₂.