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sergij07 [2.7K]
2 years ago
15

Please anyone help me

Chemistry
2 answers:
serg [7]2 years ago
6 0

Answer:

It is c

Explanation:

Fofino [41]2 years ago
3 0

Answer:

W and Z, because they are in the same group as one another

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Chemical reactions forming ions _____.
Sergeu [11.5K]
The answer should be <span>balance electrically

</span><span>Chemical reactions that form ions should have a balanced charge. The example of the reaction is HCl. When forming ions, the equation should be:
HCl => </span>H^{+} + Cl^{-}
In this case, the hydrogen has one plus charge and chlorine has one negative charge. The resultant should be zero, so it's balanced.
4 0
3 years ago
A tank is filled with gasoline to a depth of exactly 2 feet. The tank is a cylinder resting horizontally on its side, with its c
inna [77]

Answer:

The volume of the gasoline in the tank is 18.85 cubic feet

Explanation:

The tank is a cylinder. The equation for calculating the cylinder volumen is πr²*h, r is radius and h is height. π is approximately 3.1416. So,  The tank is  resting horizontally on its side, its radius is 2 feet/2= 1 feet. h=a tank long= 6 feet.

With equation:

Vol gasoline=3.1416*1²*6=18.85 feet ³

I hope my answer helps you

6 0
3 years ago
Water vapor condenses into a glass of water. The water is then placed in a freezer and changes into ice. What remains consistent
PolarNik [594]
Chemical properties
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3 years ago
A compound is found to contain 38.65 % carbon, 16.25 % hydrogen, and 45.09 % nitrogen by mass. what is the empirical formula for
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The molar mass of carbon is 12, hydrogen is 1, and nitrogen is 14, hence the ratio are:

 

C = 38.65 / 12 = 3.22

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Divide the three by the lowest ratio which is 3.22:

 

C = 3.22 / 3.22 = 1

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So the empirical formula is:

CHN

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3 years ago
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