Answer:
317 g
Explanation:
Cu + 2HCl --> CuCl2 +H2
1 : 2 1 : 1
1 mole of Cu = 63.5 g
1 mole of H2 = 2g
1 mole Cu produces = 1 mole of H2
63.5 g of Cu produces = 2 g of H2
So
10 g of H2 will be produced from = (63.5/2)*10 = 317 g of Copper
Answer:
12.62 L
Explanation:
First, we have to calculate the moles corresponding to 18.0 g of oxygen gas (MW 32.0).
18.0 g × (1 mol/32.0 g) = 0.563 mol
Then, we can find the volume occupied by 0.563 moles of oxygen at STP (273,15 K, 1.00 atm) using the ideal gas law.
P × V = n × R × T
V = n × R × T / P
V = 0.563 mol × 0.0821 atm.L/mol.K × 273.15 K / 1.00 atm
V = 12.62 L
Congress are given a power and decision to ratify the treaties of the foreign policy.
<u>Explanation:</u>
The U.S. Constitution gives a significant part of the international strategy dynamic to the administration, however the congress has a job in approving treaties, and the Supreme Court deciphers arrangements when cases are introduced to it.
Under the Constitution, the President of the United States decides U.S. international strategy. The Secretary of State, selected by the President with the counsel and assent of the congress, is the President's boss remote undertakings guide.
Answer:
false
Explanation
The chemical bonds were broken when creating the compound MgO.
