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Volgvan
3 years ago
9

What is the color red

Chemistry
1 answer:
Anettt [7]3 years ago
7 0

Answer: it's blood

Explanation:

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At constant pressure, when the temperature of a gas is decreased, what happens to its volume?
lesya [120]
It decreases as temperature is indirectly proportional to volume
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3 years ago
5.54 moles of AgNO3 are dissolved in 0.48 L of water. What is the molarity of the AgNO, solution?
expeople1 [14]

Answer:

11.54 M

Explanation:

In this case, all we have to do is to apply the following expression:

M = n/V

M: molarity

n: moles

V: volume of solution in liters

In this case, we can assume that the volume of water will be the volume of solution. This is because the problem is not specifing if the moles of AgNO3 are liquid or solid, so we can make a safe assumption of the volume.

Using the expression above we have:

M = 5.54 / 0.48

M = 11.54 M

This is the molarity of solution

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4 years ago
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Answer:

A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.

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Answer:

A condensation reaction joins two larger molecules by splitting out a smaller molecule — usually water or ammonia — between them.

In an esterification reaction, an OH  from the acid and an H from the alcohol form a molecule of water.

The larger parts join to form the ester.

Ethanol and butanoic acid react to form ethyl butanoate.

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What criteria are used to distinguish between a chemical change and a physical change
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If the ending substance has changed its properties. For example if iron rusts it is a chemical change because it is no longer the same as before it is now just rust. A physical change only changes the appearance but burning something or changing it's chemical properties is a chemical change. 
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