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zhenek [66]
3 years ago
8

In any chemical compound, the elements are always combined in the same proportion by ___. A. charge B. mass C. volume D. density

Chemistry
1 answer:
Tresset [83]3 years ago
6 0

Answer is: B. mass.

Proust's law or law of constant composition said that a given chemical compound always contains its component elements in fixed ratio and does not depend on method of preparation.

Law of multiple proportions or Dalton's Law said that the ratios of the masses of the second element which combine with a fixed mass of the first element will be ratios of small whole numbers.  

For example, nitrogen(I) oxide N₂O; m(N) : m(O) = 2·14 : 16 = 7 : 4.

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The list below includes some of the properties of ammonia
suter [353]
Ammonia is colorless gas with a characteristic smell. Its density is 0.589 times than air which makes it lighter than air. Ammonia can be easily liquefied due to the hydrogen bonding between the molecules. The boiling point is at -33.3 degrees Celsius and the freezing point is at -77.7 degrees Celsius.
7 0
3 years ago
Benzene would react_____________.
Vlada [557]

Answer: Benzene is less reactive than methylbenzoate and more reactive than Nitrobenzene

Explanation:

This is because the methyl group on the benzene ring is an electron donating group leading to the activation of the ring and subsequently leading to more canonical resonance structure at the intermediate stage of the reaction enhancing the faster reactivity

However for the Nitrobenzene the nitro group is an electron withdrawing group leading to a slower activation and less resonance canonical structure at the reaction intermediate leading to a slower reaction than the reaction of benzene without the nitro group

4 0
4 years ago
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Yanka [14]

Answer:

if the oil is already 60 c and you heat up the hot plate to the same degree you are not changing anything

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4 0
3 years ago
Read 2 more answers
Fluorine has an atomic number of 9, how many electron shells does it have?
aleksandr82 [10.1K]
2 shells because if you do the electronic configuration: 
 2,7 which adds up to 9
7 stands for the group it in and it also stands for how many electrons are in the outer shell.
the amount of spaces stands for which period its in therefore it in period 2
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3 years ago
Of the groups below, which are the least chemically reactive?
seropon [69]

It is actually Group 3A elements. I just took the test.

8 0
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