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natulia [17]
2 years ago
14

Questioned document examiners prefer to work with copies of a questioned document in order to avoid damage to the original

Chemistry
1 answer:
gladu [14]2 years ago
4 0
I think it is a False
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The graph above plots gravitational force versus distance for two asteroids of equal mass (10 billion kg). When the distance bet
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Which squirrel do you think is better suited for the environment, the gray one or the white one? and why
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The grey squirrel.

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This is your answer because the white one would have a harder time to blend in with the tree's and the environment, whilst the grey one is better suited for its environment better due to the fact that it can blend in with the trees, and hide better.

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One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal
kenny6666 [7]

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}{(2*X+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= 6.93g/mol  

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

Best regards!

8 0
2 years ago
Q2.Which is true about potassium?
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\bf \LARGE\rightarrow{Very  \: reactive}

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