CHEMISTRY HIGH SCHOOL

Which of the following chemicals, found in tobacco smoke, is also found in nail polish remover?a. ammonia
b. acetone
c. formaldehyde
d. arsenic

Answers

Answer 1
Answer: The answer is the option B. Acetone. Acetone is a very important solvent. Due to its solvent ability, acetone is the main constituent of nail polish removers to dissolve finger nail paint.. Acetone is also present in cigarettes as solvent for extraction process. Acetone then is found the cigarette smoke.Hope this helps. Let me know if you need additional help!
Answer 2
Answer:

Answer:

b is the correct answer for e2020

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Baking a cake is an example of -a. forming mixtures.
b. forming solutions.
c. exothermic reactions.
d. endothermic reactions.

Answers

I think the correct answer is D. Baking a cake is an example of endothermic reaction. The chemical changes happening when you bake a cake includes denaturing proteins in milk, eggs, and flour. Chemical bonds are broken and new bonds are made. To aid these changes, heat is supplied by the heat in an oven.

Which structural adaptation would help a plant survive better in a shady environment? A.
thorns

B.
small leaves

C.
large leaves

D.
brightly colored flowers

Answers

Answer:C.

large leaves

Explanation: I took the test

Both the sympathetic and parasympathetic divisions can be found in the __________ nervous system.

Answers

The answer is B. autonomic. Good luck!

Answer:

b autonomic

Explanation:

The term biodiversity means the variety of organism (true or false)

Answers

Answer:

true

Explanation:

How could using ethanol as a fuel affect the carbon dioxide level in the atmosphere is this good or bad for the environment PLEASE HELP ME, IT'S FOR MY NATIONAL 5 ASSIGNMENT

Answers

hey there you see ethonol i beliive is a corn based fuel and scientists are saying that it is more healthy for are invirment  but not 100% green.however this fuel is not a renewable resource it is still widely abundent because we have corn felids. but i think it is not the smartest investment because if we have a big storm or cropos wont grow anymor than we would not have cars therfore limiting transportationn  which setting a huge deppresion. gkad you asked i hads something simmilar to this on my ssvec  assignment

The empirical formula of a compound is determined to be CH2O, and its molecular mass is found to be 90.087 g/mol. Determine the molecular formula of the compound, showing your work.

Answers

To find the molecular formula of the compound, we get the molar mass of empirical formula CH2o which is 30 g/mol. We divided  the molecular mass of 90.087 g/mol by 30, we get 3. Hence, we multiply each element by 3, getting the molecular formula of C3H6O3.

Answer:

molecular formula = C₃H₆O₃

Explanation:

The empirical formula is the simplest formula of a compound obtained by converting the moles of each atom to the simplest ratio.

In order to determine the molecular formula we will first calculate the empirical formula mass of compound.

Empirical formula mass = mass of C + 2 X mass of hydrogen + mass of O

Empirical formula mass = 12 + 2 +16 = 30

given molecular mass = 90.087

Let us divide the molecular mass by Empirical formula mass

ratio = 90.087 / 30 = 3 (approx)

Thus the molecular formula = 3 X empirical formula of compound

molecular formula = 3 (CH₂O)

molecular formula = C₃H₆O₃
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