7 mass number is the number of protons and neutrons in an atom
It is not a mineral because sugar crystals do not occur naturally its formed from plants such as sugar cane and beets.
N2 + 3H2 ------> 2NH3
According to the equation;
3 mol of hydrogen will produce 2mol of ammonia.
1 mol of hydrogen _____________________?
= 2 × 1/3
= 0.67 mol
<span>I think that the effective nuclear charge increases as you go up a group and across a period.
so maybe Rh, K, Ti, Mg, P
I hope I helped :)</span>
According to google"<span>These are </span>the main<span> roles of the </span>circulatory system<span>. The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen"
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