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makvit [3.9K]
3 years ago
14

Which set of coefficients will correctly balance the following skeleton equation?

Chemistry
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

2Fe + 3Cl2 → 2FeCl3

Explanation:

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What elements on the periodic table are most likely to form covalent compounds ?
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 elements like carbon ,nitrogen, sulfur  and oxygen and etc are most likely to form covalent bonds
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Diamonds and graphite are both made of carbon atoms. Why do they have different properties?
AysviL [449]
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3 years ago
You don’t have to answer everything, whatever you know could be really helpful
Ierofanga [76]

One

molar mass NaCl

Na                 = 23

Cl                   =35.5

Molar mass = 58.6

mols = 450 / 58.5

mols = 7.69 mols

Concentration = mols / L

mols = 7.69

Volume = 4.5 kg = 4.5 L  [1 liter weighs 1 kg]

C = 7.69 mol / 4.5 L

C = 1.71 mol/L

The question is unclear. I'm taking this to mean that you don't change the number of moles; you merely add 0.5 L to the volume.

Answer C = 7.69 / 5L = 1.54 mol / L

Two

I'm going to leave this. The wording just is not clear.

Three

More than you could grow in the entire planet earth for many centuries.

Ratio of sugar = 10 / (40 + 10 + 500) = 10 / 550 = 1:55 or 0.0182 to 1

Four

Guava  Juice = (36 / 100 ) * 100% = 36%

Water = (64/100 ) * 100 = 64%  

5 0
3 years ago
In the reaction between magnesium and sulfur, the magnesium atoms
Serggg [28]

Answer: Option (b) is the correct answer.

Explanation:

Atomic number of magnesium is 12 and its electronic distribution is 2, 8, 2. Whereas atomic number of sulfur is 16 and its electronic distribution is 2, 8, 6.

So, in order to attain stability a magnesium atom needs to lose its 2 valence electrons and a sulfur atom needs to gain two electrons to completely fill its octet.

Hence, magnesium on losing two electrons will acquire a +2 charge and thus, it becomes a cation. On the other hand, sulfur on gaining two electrons will acquire a -2 charge and thus, sulfur will become an anion.

Thus, we can conclude that in the reaction between magnesium and sulfur, the magnesium atoms become cations.

5 0
3 years ago
Read 2 more answers
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