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natta225 [31]
3 years ago
6

Light travels three-fourths as fast through water as it does through a vacuum.

Chemistry
2 answers:
Talja [164]3 years ago
4 0
1.33 is the answer thank me later
Marysya12 [62]3 years ago
4 0
The answer is 1.33hope it helps
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Which of the following pairs of atoms do NOT exhibit a covalent bond?
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The answer is Cs and F. S and O  are both non-metals and if I am not mistaken they are both on the right side of the periodic table. S and O exhibit a covalent bond, the other pairs do too except for the first pair of atoms.  Therefore, the answer is  A. Cs and F.
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3 years ago
Elements in the same period have _____.
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Ans: Elements in the same period have the same number of electron shells.

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2 years ago
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A
Mnenie [13.5K]

Answer:

it should be the second one since London dispersion causes interaction between molecules.

hope I helped.

6 0
3 years ago
An unbalanced equation is shown. In this reaction, 200.0 g of FeS2 is burned in 100.0 g of oxygen, and 55.00 g of Fe2O3 is produ
Crazy boy [7]
<span>4FeS2 + 11O2 = 2Fe2O3 + 8SO2</span>

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To find for the theoretical yield, we first determine the limiting reactant.

100 g O2 ( 1 mol / 32 g) = 3.13 mol O2
200 g FeS2 (1 mol / 119.98g) = 1.67 mol FeS2

Therefore, the limiting reactant is O2.

Theoretical yield = 3.13 mol O2 ( 2 mol Fe2O3 / 11 mol O2 ) = 0.57 mol Fe2O3

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3 0
3 years ago
Determine the rate of a reaction that follows the rate law:
natima [27]

Answer:

k= 1.5

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rate = k[A]”[B]"

6 0
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