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Olin [163]
3 years ago
9

Pure water is 40 percent acid and 60 percent alkaline True or false

Chemistry
1 answer:
Verdich [7]3 years ago
3 0
The answer would be true
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As a storm from moves in, you notice that a column of mercury in a barometer rises to 736 mm. (a) Determine the air pressure. (b
sesenic [268]

Answer:

The air pressure is 9.8 *10^4 pa

The water will rise to a height of 10.0 meter

Explanation:

Step 1: Data given

As a storm from moves in, you notice that a column of mercury in a barometer rises to 736 mm.

Step 2: Calculate the air pressure

The Pressure against the mercury column = h*d*g = 0.736 * 13593 * 9.81 = 9.8 * 10^4 Pa

Step 3: Calculate the height of the water

Let the Pressure  the water column for same pressure is h meter : -

9.8 * 10^4 = h*d*g  

=>9.8*10^4 = h*1000*9.81  

=>h = 10.0 meter

The water will rise to a height of 10.0 meter

5 0
3 years ago
Please help me..!!!!!!!!!!!!!
Viefleur [7K]

Answer:

The answer you selected is correct (A)have

Explanation:

Red blood cells  one goal which is to carry oxygen throughtout your body.. without it you would die to lack of oxygen.

5 0
2 years ago
what is the correct electron configuration for an element with five electrons in the third energy level
Tasya [4]
That would be phosphorus. It’s electron configuration is 1s^2 2s^2 2p^6 3s^2 3p^3
7 0
3 years ago
The density of copper is 8.9 g/mL. What is the volume of 20.5 g copper?
love history [14]

Answer:

density = 8.9 g/ml

m = 20.5 g

V = ... ?

density = m/V

V = m / density

= 20.5 / 8.9

= 2.30337 ml

3 0
3 years ago
The mixture which contains elements only is (a) air (b) brass (c) mineral water (d) seawater
Sholpan [36]

Answer:

So yes! A mixture can contain just elements if those elements are not chemically reactive to one another. Air is a great example of an elemental mixture as it contains nitrogen, oxygen, and argon (along with some other compounds).

Explanation:

hope this helps you :)

4 0
2 years ago
Read 2 more answers
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