CHEMISTRY HIGH SCHOOL

HELP UNDERSTAND, PLEASE! In a reaction, 15 moles of carbon dioxide are produced from 5 moles of iron (III) oxide and 15 moles of carbon monoxide. What is the mole ratio of carbon dioxide to carbon monoxide?

15:5

5:15

1:3

1:1

Answers

Answer 1
Answer: My best guess has to be 1:3
Answer 2
Answer:

15:15 is equal to 1:1

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Answers

a zebra would be a herbivore as well as a primary consumer
consumer, herbivore.
hope that this helps you =)

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Answers

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A(n) is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body.

Answers

A(n) DRUG is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body.

Example: Tylenol (Acetaminophen), Is a Drug that is used to relieve pain, head aches, and reduce fever.

Hope It Helped. :)

Answer:

A(n) is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body.

Explanation:

A saturated solution of NaNO3 is prepared at 60.°C using 100. grams of water. As this solution is cooled to 10.°C, NaNO3 precipitates (settles)out of the solution. The resulting solution is saturated. Approximately how many grams of NaNO3 settled out of the original solution?
(1) 46 g (3) 85 g
(2) 61 g (4) 126 g

Answers

The answer is 46 g


The explanation :


According to the attached curve of the relation between the temperature and the grams in solutions:


-we can see from the curve that the grams of NaNO3 at 60°C = 126 g


-and the grams of NaNO3 at 10°C = 80 g


-so, To get the grams of NaNO3 settled out of the original solution, we will subtract the grams of NaNO3 at 10°C - the grams of NaNO3 at 60°C


126 g - 80 g = 46 g


∴ the correct answer is 46 g
The answer is (1) 46g. This is related to the solubility curve of the NaNO3. The solubility of NaNO3 under 60 ℃ is 126 g. And the solubility under 10 ℃ is 80 g. So the NaNO3 precipitates is 126-80=46 g.

What is the electron configuration for helium (He)?A. 1s1
B. 1s2
C. 1s22s1
D. 1s22s2

Answers

The electronic configuration is the system of the electron distribution in the shells of the atom. The electronic configuration for He is 1s² as it is a noble gas. Thus, option B is correct.

What is electronic configuration?

The electronic configuration is the depiction of the electrons in the orbital level of the atoms around the nucleus. The electrons are distributed in the four orbitals namely, s, p, d, and f.

The orbitals have different sub-levels and can accommodate a different number of electrons. The electronic configuration of helium atom with atomic number 2 can be written as, 1s².

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Therefore, 1s² is the electronic configuration of He.

Learn more about electronic configuration here:

brainly.com/question/4526852

#SPJ5

Answer:

B. 1s2

this is your answer....

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Answers

Answer:

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Explanation:

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