3 major groups are metals,metalloids, and the non-metals.
Answer:they get it though food!
Explanation:
There's nothing following?
Answer:
6 mols
Explanation:
Notice that on the left, there is one "O2" molecule, and one O2 results in two "H2O" molecules. So the ratio of O2 to H2O is 1 to 2
If we have 3 mols of oxygen, then per the ratio, we would have 6 mols of H2O, since 3*2=6
Answer:
52.79 dm3 of SO2 will be produced when 975kJ/mol of heat are liberated.
Explanation:
In the reaction given;
2PbS(s) + 3O2(g) 2PbO(s) + 2SO2(g) H = -827.4 kJ/mol
-827.4 kJ/mol of heat liberates 2 moles of SO2 in the reaction involving lead and oxygen
At STP, -827.4 kJ/mol of heat liberate 22.4 * 2 dm3 of SO2
So therefore, 975 kJ/mol of heat will liberate
= 975 * 22.4 * 2 / -827.4
= 43 680 / -827.4
= 52.79 dm3 of SO2.
52.79 dm3 of SO2 will be produced at STP if 975 kJ/mol of heat are liberated.
