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pishuonlain [190]
3 years ago
8

A U-shaped valleys most often formed by what a) volcanoes b) oceans waves c) plate movement d) glacial movement

Chemistry
1 answer:
Anon25 [30]3 years ago
8 0

Answer:

D. Glacial movement

Explanation:

Glaciers are very large and carve a U shape into the ground.

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The barium ion Ba2+ combines with the phosphate ion PO43- to form an ionic compound. Which is the formula for that compound?
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The analysis of a compound gives the following percent composition by mass: C: 52.14 percent; H: 9.946 percent; S: 12.66 percent
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Explanation:

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H: 9.946% of 253.4 = 0.09946x253.4 = 25.20 g

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O: 25.26% of 253.4 = 0.2526x253.4 = 64.00 g

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C: 132.12/12 = 11 moles

H: 25.20/ 1 = 25 moles

S: 32.08/32 = 1 mol

O: 64.00/16 = 4 moles

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