Answer:
3
Explanation:
third answer might be right
Disagree because in the law of conservation of mass, it states energy cannot be created or destroyed
Answer:
Aluminum had more value than gold in the 1820s, because it was harder to obtain. Hope this helped :)
“Bonding molecular orbitals are formed by... in-phase combinations of atomic wave functions, and electrons in these orbitals stabilize a molecule.”
1) Chemical equation
2Al + 6 HCl ---> 2Al Cl3 + 3 H2
2) molar ratios
2 mol Al : 3 moles H2
3) Proportion
2 mol Al / 3mol H2 = x / 9 mol H2
4) Solve for x
x = 9 mol H2 * 2 mol Al / 3 mol H2 = 6 mol Ag
Answer: 6 moles
