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valentinak56 [21]
2 years ago
7

I need help with this pls help

Chemistry
1 answer:
dusya [7]2 years ago
3 0

Answer:

L X W

Explanation:

Area is the amount of space in a 2-dimensional figure. You do this by Length x width, which is the same as Base x width. Take a rectangle for instance. The length is 5 feet and the width is 7 feet. To find the area you do 5 by 7/ 5 x 7. 5 x 7 = 35. The area is 35 square feet/ 35 sq².

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013 10.0 points
34kurt

Answer:

this isn't immediately clear, it can be seen in ... CO2? 1. 6.0 × 10−23 g. 2. 44 g. 3. 7.31 × 10−23 g correct. 4. 6.0 × 10. 23 g. 5. 7.31 × 10 ... 40.0 grams of S will react leaving 10.0 grams. S unreacted. 013. 10.0 points ... FeCl2 and K2CO3 is ... 9. 1. There is no reaction. 2. KCl electrolyte. 3. CO2 gas. 4. FeCO3 precipitate. correct.

Explanation:

5 0
2 years ago
How much calcium hypochlorite (65% strength) is needed to make 200 L of 2% hypochlorite solution? (Assume that a 1% solution is
g100num [7]

To solve this we use the equation,

 

M1V1 = M2V2

 

where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.

 

65 x V1 = 2 x 200 L

V1 = 6.15 L

5 0
3 years ago
Calculate the mass (in ng) of 2.33 x 1020 atoms of oxygen.
Law Incorporation [45]
<span>Answer = 6.19 x 10^6  </span>
4 0
3 years ago
Read 2 more answers
The ability for an pond to freeze over in the winter
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Answer:

The ability for a pond to freeze over in the winter is a physical property.

3 0
3 years ago
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A mixture of helium, nitrogen, and oxygen has a total pressure of 752 mm Hg. The
NISA [10]

Answer: The partial pressure of oxygen in the mixture is 321 mm Hg

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_{He}+p_{N_2}+p_{O_2}

Given : p_{total} = total pressure of gases = 752 mm Hg

p_{He} = partial pressure of Helium = 234 mm Hg

p_{N_2} = partial pressure of nitrogen = 197 mm Hg

p_{O_2} = partial pressure of oxygen = ?

Putting in the values we get:

752mmHg=234mmHg+197mmHg+p_{O_2}

p_{O_2}=321mmHg

The partial pressure of oxygen in the mixture is 321 mm Hg

5 0
3 years ago
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