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2 years ago

WHICH PROPERTIES OF A SOLID ARE SHARED WITH LIQUID BUT NOT WITH GAS ANSWER QUICKLY

Chemistry

1 answer:

irakobra [83]2 years ago

4 0

Answer:

Both solids and liquids have a definite volume

Explanation:

There are three states of matter which are; solids, liquids and gases.

All three states of matter have unique peculiarities. The solids have a definite shape and volume because of very strong intermoleclar forces in operation in the system.

Liquids also have a definite volume, but do not have a definite shape. They take the container's shape. However, there are less intermolecular interaction in the liquid states.

It is common to assume that gas particles do not interact. A gas does not have definite shape and volume and the weakest magnitude of intermolecuar interference.

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If an object has a mass of 20 kg, what is the force of gravity acting on it on earth? A. 196 N B. 32.67 N End of exam C. 1.96 kg

garri49 [273]

Force = mass x gravity

Force = 20 kg x 9.8 m/s²

Force = 196 Newtons

Answer A

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3 years ago

How many grams of KCI can be dissolved in 63.5. g of water at 80

Masteriza [31]

Answer:

35.8 g

Explanation:

Step 1: Given data

Mass of water: 63.5 g

Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C

Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.

63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl

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3 years ago

Which substance is a binary acid?

Gelneren [198K]

The answer is going to be hydrochloric acid, therefore hydrochloric acid is a binary acid.

8 0

3 years ago

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An unknown compound contains 38.7 % calcium, 19.9 % phosphorus and 41.2 % oxygen. what is the empirical formula of this compound

Softa [21]

Answer: Ca3(PO4)2

Explanation:

We assume that the sample is 100.0 g.

The sample contains 38.7 g of Ca, 19.9 g of P, and 41.2 g of O as the proportions show.

Then we can calculate the number of moles of each component (n = m/atomic mass).

The number of moles of Ca = 38.7/40.078 = 0.96 mol.

The number of moles of P = 19.9/30.97 = 0.64 mol.

The number of moles of O = 41.2/15.99 = 2.75 mol.

Now, we can get the molar ratios of different components (Ca, P, and O) in the sample by dividing the number of moles of each component by the lower number of moles, that we should divide the number of moles by (0.64).

Ca: P: O = (0.96/0.64) : (0.64/0.64) : (2.75/0.64) = 1.5 : 1 : 4.

To avoid the fraction of the ratios, we can multiply all ratios by 2.0.

Now, the ratio of Ca : P : O will be 3 : 2 : 8.

That main the empirical formula of the compound is Ca3P2O8 which can be expressed as calcium phosphate (Ca3(PO4)2).

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2 years ago

Consider the chemical equations shown here.

Alona [7]

Answer:

-304.1

Explanation:

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3 years ago

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