Answer:
b. Oxygen
Explanation:
It can be seen that the chemical equation have 2 moles of hydrogen gas that should be reacted with the one mole of oxygen gas
Now for 4.2 moles, the hydrogen gas would be reacted as
= 4.2 × 1 ÷ 2
= 2.1 mole oxygen gas
Therefore the hydrogen would be limited the reagent because it limits the product formation
On the other hand, the oxygen is the excess reagent i.e.
= 3 - 2.1
= 0.9 moles
This would be left for oxygen
Hence, the correct option is b.
The Samantha being referred to in this item is Samantha Smith, an 11-yeaar old fifth grader during 1983. She wrote a letter to the Russian president as part of a school project and the president replied to her personally. She was invited to visit USSR and accepted the invitation. While many believe that the warm welcome to the kid was a genuine act as part of the president wanting to have a close relationship with US, many also speculated that the invitation was merely an act.
The answer is World War 1 (B).
Answer: sweeping blows
Explanation:
"Sweeping" has multiple meanings, one of which is to infer the intensity or wide ranging nature of an initiative. For instance, if sweeping reforms are introduced in an industry, it means that the reforms are wide ranging and significant.
A "blow" is synonymous with a setback so in using the phrase, "sweeping blow", the author wanted to show just how intensive the setback or tragedy that the American Indians had suffered was.
