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3 years ago

In the atmosphere water vapor condenses to form clouds.

Chemistry

2 answers:

levacccp [35]3 years ago

4 0

False , they form water or ice crystals

ozzi3 years ago

3 0

Answer:

The correct answer is True according to e2020

Explanation:

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Is it better for an element to be more abundant or less abundant?

PIT_PIT [208]

I believe it's better for it to be more abundant because it's better to have more then less. Take water as an example. Water is an important factor to our survival and if we didn't have enough of that we would be in trouble. Or if we needed food but there wasn't enough more people would be dying from starvation. It's better to have a little more than a little less.

8 0

3 years ago

Distinguish and give example for homogeneous and heterogeneous mixture

Nataliya [291]

Answer:

Through combining two or more substances, a mixture is produced. A homogeneous solution tends to be identical, no matter how you sample it. Homogeneous mixtures are sources of water, saline solution, some alloys, and bitumen. Sand, oil and water, and chicken noodle soup are examples of heterogeneous mixtures.

Explanation:

6 0

3 years ago

URGENT!!<br> which has the largest London dispersion force out of the ones listed

dedylja [7]

The answer to this question is HBr

3 0

3 years ago

Select the physical properties. Select all that apply.

Darya [45]

I mean the answer is -2 m/s^2

6 0

3 years ago

Read 2 more answers

If 0.025 gram of Pb(NO3)2 is dissolved in 100. grams of H2O, what is the concentration of the resulting solution, in parts per m

anastassius [24]

Answer:

249.94ppm

Explanation:

Given parameters:

Mass of Pb(NO₃)₂ = 0.025g

Mass of water = 100g

Unknown:

Concentration of solution in ppm = ?

Solution:

Concentration in parts per million gives the amount of solute found in a million units of the solution. They are desirable for expressing very small amount of solutes in a large solution. For example, the level of arsenic in the soil.

Concentration in ppm = $\frac{amount of solute}{amount of solution} x 10^{6}$

A solution is made up of solute and solvent. The solvent here is water.

mass of solution = mass of solute + mass of solvent = 0.025 + 100 = 100.025g

Concentration in ppm = $\frac{0.025}{100.025} x 10^{6}$ = 249.94ppm

4 0

3 years ago