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3 years ago

Is water the only thing that has surface tension?

Chemistry

2 answers:

aliya0001 [1]3 years ago

7 0

No, many liquids have surface tension such as mercury.

Mkey [24]3 years ago

3 0

Answer:

Water has a high surface tension because the water molecules on the surface are pulled together by strong hydrogen bonds. That means a drop of water will "want" to have the smallest possible surface area.

Explanation:

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Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simulta

Vilka [71]

Answer:

147.2g

Explanation:

The full solution can be found in the image attached. Graham's law was applied to the problem. The rate of diffusion of a gas is inversely proportional to its molar mass or vapour density. Molar mass= 2vapour density

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2 years ago

The percent composition of calcium is ?

DochEvi [55]

Answer: 40.1%

Explanation: The mass of calcium in this compound is equal to 40.1 grams because there's one atom of calcium present and calcium has an atomic mass of 40.1 . The molar mass of the compound is 100.1 grams. Using the handy equation above, we get: Mass percent = 40.1 g Ca⁄100.1 g CaCO3 × 100% = 40.1% Ca.

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3 years ago

How to separate iron rich particles from grains of table salt

mafiozo [28]

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3 years ago

The reaction h2co3 h2o<-> h3o hco3– takes place in water. what happens to the equilibrium when the pressure is increased?

PSYCHO15rus [73]

I think the correct answer from the choices listed above is the first option. When the the pressure is increased, the equilibrium of the reaction would favor <span>formation of reactants. One indication would be the gas that is present in the product side. Increasing the pressure would allow the products to react and form the reactants. Hope this helps.</span>

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3 years ago

Read 2 more answers

Suppose you are provided with a 35.83 g sample of potassium chlorate to perform this experiment. What is the mass of potassium c

Charra [1.4K]

For a 35.83 g sample of potassium chlorate, the mass of potassium chloride is mathematically given as

M Kcl=21.62g

<h3>What is the mass of potassium chloride you expect to release upon heating?</h3>

Generally, the equation for the Chemical Reaction is mathematically given as

2KClO_3----->2KCl+2O_2

Therefore

$Mole of KCl=\frac{35.57}{122.55}$

Mole of KCl=0.29mol

Mass of Kcl=0.29*74.55

Mass of Kcl=21.62g

In conclusion, Mass of Kcl

M Kcl=21.62g