Hello, hope this helps
Answer:
D. Aqueducts
Explanation:
They constructed these to bring water to many services such as public baths and latrines. Let me know if have any questions about this.
This is an easy question. you just have to divide.
420÷6.82= 61.5
but because they are individual stocks and you can't have half a stock, you round it up to the nearest whole number
so the answer is 61
hope I helped:)
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
Answer:
Which of these is considered a long-term effect of alcohol abuse?
vomiting
slurred speech
impaired judgment
thin and brittle bones
Explanation:
Which of these is considered a long-term effect of alcohol abuse?
vomiting
slurred speech
impaired judgment
thin and brittle bones
