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JulsSmile [24]
2 years ago
9

What is the mass in grams of 1.73 moles CaH2

Chemistry
1 answer:
Nata [24]2 years ago
4 0
Mass in grams = no. of moles multiply by molar mass
molar mass is 42 so by putting value we get 72.66 grams...
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Helium has a density of 1.79×10^-4 g/mL at standard temperature and pressure. A balloon has a volume of 6.3 liters. Calculate th
djyliett [7]
6,3 L = 6300 mL
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1,79×10^-4g -------- 1 mL
Xg --------------------- 6300 mL
X = 0,000179×6300
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3 years ago
Describe two techniques used to measure the PH of a solution
natali 33 [55]

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ph paper, or a ph meter

Explanation:

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Put these different types of radiation in order from MOST to LEAST penetrating.
Naily [24]

Answer:

C. Gamma > beta > alpha

Explanation:

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<u>Gamma rays</u>: These are parts of electromagnetic spectrum and travel with the speed of light (maximum velocity).Gamma rays do not have mass have maximum penetrating power.

4 0
2 years ago
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Yanka [14]

Answer:

E) None of the above

Explanation:

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3 years ago
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prohojiy [21]

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there will a definite decrease in solute solution

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2 years ago
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