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Reil [10]
3 years ago
5

HELP

Chemistry
2 answers:
Sergio [31]3 years ago
6 0
Altitude because all other ones are just examples of weather that can occur.
scoray [572]3 years ago
3 0
Altitude. Rainfall, a hot dry day, and a hurricane are all examples of weather, not climate.
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One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal
Rudiy27

Answer:

Lithium oxide, Li₂O.

Explanation:

Hello!

In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:

M_2O+H_2 \rightarrow 2M+H_2O

Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:

5.00gM_2O*\frac{1molM_2O}{(2x+16)gM_2O}*\frac{2molM}{1molM_2O}*\frac{xgM}{1molM}   = 2.32gM

Thus, we perform the operations in order to obtain:

\frac{10x}{2x+16}=2.32

So we solve for x as shown below:

10x = 2.32(2x+16)\\\\10x = 4.64x+37.12\\\\x = \frac{37.12}{10-4.64}\\\\x= 6.93 g/mol

Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.

Best regards!

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3 years ago
Which statement best describes scientific laws? Scientific laws are facts that describe natural events. Scientific laws are theo
Fiesta28 [93]
Well scientific laws are really laws! You can't change a scientific law and laws can be facts as well. Hope this helps!
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Any substance that when dissolved in water will give off h ions is referred to as a(n) ________.
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Question 5 (1 point)<br> Potassium Bromide is insoluble.<br> O True<br> O False
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Explanation:

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