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PolarNik [594]
3 years ago
11

Please help me I don’t understand

Chemistry
1 answer:
Firdavs [7]3 years ago
8 0
Living. Non-living
Animals. Fake flowers
Trees. Plastic
Plants. Water
Humans. Paper
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What is the sign of Mercury​
Sever21 [200]

Answer:

The answer is Hg.

Explanation:

Symbol for Mercury is Hg.

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3 years ago
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Which of the following has a mass of 10.0 g?
Serjik [45]

Answer:

a.  0.119mol Kr

Explanation:

To solve this problem, we must understand that;

     Mass  = number of moles x molar mass

Molar mass of Kr  = 83.3g/mol

                        Ar = 40g/mol

                        He = 4g/mol

                        Ne = 20.18g/mol

a0.119 mol Kr               mass  = 0.119 x 83.3 = 9.9g

b 0.400 mol Ar             mass  = 0.4 x 40  = 16g

C 1.25 mol He               mass  = 1.25 x 4  = 5g

d 2.02 mol Ne              mass  = 2.02 x 20.18  = 40.8

Krypton is the answer

5 0
3 years ago
which method would be best for separating the compounds of a mixture that is made from two diffrent liquids
kobusy [5.1K]

Answer:

fractional distillation since ot depends on the different liquids to have different boiling points

5 0
3 years ago
PLZ HELP THIS IS IMPORTANT!!
taurus [48]
A) Magnesium Chloride

Mg is the symbol of Magnesium and Cl is the symbol of chlorine ( but when Cl is a compound it will be Choride)
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4 years ago
Which atoms exist as diatomic molecules?
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