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UNO [17]
3 years ago
6

Given: g on moon = –1.63 meters/second2

Chemistry
1 answer:
Basile [38]3 years ago
7 0

The Answer is:

<u>66 meters.</u>

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A group of electrons orbiting at roughly the same distance from the nucleus
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A shell of electrons.

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If density usually increases with decreasing temperature, why does ice float on liquid water? Explain.
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If you continue to cool water past 4 degrees Celsius, its density starts to plummet (you can see this in the graph). At zero degrees, i.e., the temperature at which water turns into ice, the density of water is actually quite low. It turns out that ice has a lower density than water, and any object that has a lower density than the liquid form on which it’s kept (in this case, water) will be able to float!

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Marking brilliant for answers
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A barium hydroxide solution is prepared by dissolving 1.90 g of Ba ( OH ) 2 in water to make 71.1 mL of solution. What is the co
goldenfox [79]

Answer:

The molarity of this solution is 0.156 M

Explanation:

Step 1: Data given

Mass of Ba(OH)2 = 1.90 grams

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Step 2: Calculate moles Ba(OH)2

Moles Ba(OH)2 = mass Ba(OH)2 / molar mass Ba(OH)2

Moles Ba(OH)2 = 1.90 grams / 171.34 g/mol

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Molarity solutin = moles Ba(OH)2 / volume solution

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Molarity solution = 0.156 M

The molarity of this solution is 0.156 M

6 0
3 years ago
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