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TEA [102]
3 years ago
13

1a. A researcher accidentally spilled some sand into his beaker containing crystalline compound X. Knowing what he did about mel

ting points, he was not worried about obtaining the melting point of compound X with a few grains of sand present. Why
Chemistry
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

See explanation

Explanation:

Many organic compounds have low melting points. This is due to the fact that many of these compounds are non polar.

However, compound X is slightly polar but still has a melting point which is far less than that of sand composed of a high melting point inorganic material.

Since sand has a much higher melting point compared to compound X, the researcher need not be worried that sand was spilled into his beaker.

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Answer:

Il of the above are part of the Kinetic Molecular Theory

Explanation:

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3 years ago
If you had 15 moles of Oxygen (O2), how many moles of water (H2O) would you be able to make?
larisa [96]

Answer:

30 moles of water will produced.

Explanation:

Given data:

Number of moles of O₂ react = 15 mol

Number of moles of water formed = ?

Solution:

Chemical equation:

2H₂ + O₂      →     2H₂O

Now we will compare the moles of water with oxygen.

                  O₂           :          H₂O

                   1             :            2

                   15           :           2×15 = 30 mol

30 moles of water will produced.

                   

5 0
3 years ago
If the mass of a material is 118 grams and the volume of the material is 12 cm3, what would the density of the material be?
Sliva [168]
Density is equal to mass divided by volume.

So D=118/12

D=9.83
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Based on Table I, which compound dissolves in water by an exothermic process? *
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Answer:

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hope it helps :)

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The answer is peer review
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Read 2 more answers
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