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2 years ago

Explain how the cardiovascular system helps your body function

Chemistry

1 answer:

zhuklara [117]2 years ago

4 0

Answer:

The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Explanation:

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Which pair of compounds are structural isomers of each other? pentane and 2-methyl pentane pentane and hexane hexane and 2-methy

mojhsa [17]

Hexane and 2-methylpentane. If you draw the structures out, you can see that both isomers have 6 carbon atoms and 14 hydrogen atoms. Hence they have the same molecular formula but a different structural formula. I suggest drawing the compounds out for these types of questions to visualise it.

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2 years ago

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The psychoactive drug sold as a methamphetamine - "speed" (c10h15n) - undergoes a series of reactions in the body; the net resul

Phoenix [80]

Answer: The coefficient of nitrogen in the given equation is 2.

Explanation: The reaction for the oxidation of methamphentamine with oxygen gas in the body is given by:

$4C_{10}H_{15}N(s)+55O_2(g)\rightarrow 40CO_2(g)+30H_2O(l)+2N_2(g)$

By Stoichiometry,

4 moles of methamphentamine reacts with 55 moles of oxygen gas to produce 40 moles of carbon dioxide gas, 30 moles of water and 2 moles of nitrogen gas.

Coefficient of $C_{10}H_{15}N=4$

Coefficient of $O_2=55$

Coefficient of $CO_2=40$

Coefficient of $H_2O=30$

Coefficient of $N_2=2$

Hence, the coefficient of nitrogen in the given equation is 2.

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2 years ago

An indicator of average kinetic energy is

Paha777 [63]

Answer:

PRESSURE is right answer .

Explanation:

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3 years ago

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dusya [7]

Answer:

answer is

Explanation:

Gallium because it has the properties which you have mentioned

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