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3 years ago

Срочноооооооооооооо!!!!

Chemistry

1 answer:

Ymorist [56]3 years ago

4 0

Answer:

I can't answer this as I am not able to read the Question

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The approach most commonly used to measure metabolic rate is to measure the rate of O2 consumption. Although there are small err

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Explanation:

Metabollic rate is the amount of energy expended from an organism at a given point in time.

Equation of how glucose (food) is broken down via respiration:

C6H12O6(s) + 6O2(g) --> 6H2O(l) + 6CO2(g)

The amount of energy produced for the types of food is roughly proportional to the amount of oxygen use, so that the metabolic rate can be measured by measuring the rate of oxygen consumption.

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3 years ago

If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

Darina [25.2K]

The question is incomplete, here is the complete question:

A bottle of rubbing alcohol having aqueous solution of alcohol contains 70% (v/v) alcohol. If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

<u>Answer:</u> The amount of water present in the given bottle of rubbing alcohol is 283.8 mL

<u>Explanation:</u>

We are given:

Volume of bottle of rubbing alcohol = 946 mL

70% (v/v) alcohol solution

This means that 70 mL of rubbing alcohol is present in 100 mL of solution

Amount of water present in solution = [100 - 70] = 30 mL

Applying unitary method:

In 100 mL of solution, the amount of water present is 30 mL

So, in 946 mL of solution, the amount of water present will be = $\frac{30}{100}\times 946=283.8mL$

Hence, the amount of water present in the given bottle of rubbing alcohol is 283.8 mL

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3 years ago

Use the chart to determine which type of bond is formed between potassium (K) and chlorine (Cl).

iris [78.8K]

Potassium and Chloride forms an ionic bond.
(K+) + (Cl-) = KCl

Potassium is under Group IA (Alkali Metal), wherein elements under this group can easily lose electrons.

Chlorine is under Group VII (Halogens), in which these elements can gain electrons easily.

The inner shell electrons on potassium will merge with the outer shell of electrons of chlorine to make potassium chloride.

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