Answer:
The answer to your question is D.
Explanation:
The latitudes near the equator receives the most direct solar energy.
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Answer:
33.58%
Explanation:
Data obtained from the question include:
Mass of CuS = 9.56g
Mass of Cu = 6.35g
Mass of S = Mass of CuS — Mass and Cu
Mass of S = 9.56 — 6.35
Mass of S = 3.21g
The percentage by mass of sulphur in CuS is given by:
Mass of S/mass of CuS x 100
Percentage by mass of S = 3.21/9.56 x 100 = 33.58%
In order top top to bottom
F
F
T
T
F
F
T
T
Answer:
K: +1
Br: +7
O: -2
Explanation:
O is always -2
K is in group one, so that is its charge
-8+1 is -7, so we flip the sign and that becomes Br
The reason why we flip it is to get a net balance of 0