Answer:
B. CH₅N
Explanation:
The combustion reaction of a compound CₐHₓNₙ with O₂ is:
CₐHₓNₙ + O₂ → a CO₂ + X/2 H₂O + n NO₂
Where 1 mole of CₐHₓNₙ with an excess of O₂ produce a moles of CO₂, X/2 moles of H₂O and n moles of NO₂
Thus, you need to convert the mass of CO₂ and H₂O to moles to find the C:H ratio and determine a possible empirical formula thus:
Moles CO₂ (Molar mass 44g/mol):
44g ₓ (1mol / 44g) = 1 mole CO₂ = 1 mole C
Mole of H₂O (Molar mass 18g/mol):
45g ₓ (1 mol / 18g) = 2.5 moles H₂O = 5 moles H
Thus, in the compound you have 5 moles of H per mole of C, and a possible empirical formula is:
B. CH₅N
The only structure that meet this C:H ratio
When the nurse is reinforcing medication, the statement that she has to tell him should be apply the patch every morning and leave there for period of 12 to 14 hours, then remove it in the evening.
<h3>What is angina?</h3>
This is the condition that humans may have that would include very painful chest problems. The pain is usually severe. This pain would spread to the shoulder and other body parts. The reason would be poor circulation of blood.
<h3>What does it mean to reinforce medication?</h3>
This has to do with all of the ways that the nurse is going to ensure that there is medication compliance. It is necessary for people with health issues to adhere to taking their medications.
This would help to ensure that there is team based care that would last for only a period of time. It would help the patient to get better faster.
Hence the statement that has to be included when reinforcing medication would be: apply the patch every morning and leave there for period of 12 to 14 hours, then remove it in the evening.
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President Reagan’s new approach to the Cold War reveal about his foreign-policy strategy is:
- <u>C. He wanted to work for peace from a position of military strength. </u>
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The Cold War was a period in history between the United States and Russia (then known as the Soviet Union) where there were conflicts which led to trade embargoes, diplomatic issues and threats of war.
The two leaders of America and the Soviet Union respectively, President Reagan and Comrade Gorbachev were engaged in war of words and President Reagan tried to make peace and evoid conflict, even though the United States were stronger from a military perspective
Therefore, the correct answer is option C
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