3 years ago

When atmospheric pressure decreases, the mercury height in a barometer

Chemistry

1 answer:

Free_Kalibri [48]3 years ago

6 0

Answer:

Decreases

Explanation:

The atmospheric pressure on the surface of the mercury pushes it up the evacuated tube until the downward pressure of the mercury equals the atmospheric pressure.

If the atmospheric pressure decreases, the mercury doesn't have to rise as high.

The mercury height decreases.

You might be interested in

How do we know if their is DNA in our food?

Phoenix [80]

We know because of DNA testing in general.

7 0

3 years ago

Read 2 more answers

What part of an atom has most of its mass

cricket20 [7]

Majority of an atoms mass comes for protons and neutrons which makes up the nucleus.

5 0

2 years ago

Which of the following atoms has 4 valence electrons

Mars2501 [29]

Can you show me the atoms please? I would be able to help.

5 0

3 years ago

Calculate the pH and pOH of 500.0 mL of a phosphate solution that is 0.285 M HPO42– and 0.285 M PO43–. (Ka for HPO42- = 4.2x10-1

jekas [21]

Answer: when concentrations of acid and base are same, pH = pKa

PH = 12.38 pOH = 1.62

Explanation: pKa= -log(Ka)= 12.38. PH + pOH = 14.00

8 0

3 years ago

A compound contains 40% calcium, 12% carbon, and 48% oxygen by mass. What is the empirical formula of this compound?

jasenka [17]

Answer:

<em>CaCO3</em>

Explanation:

E.F. is looking for the lowest possible ratio

3 0

3 years ago