Chemistry College

Which of the following statements about tobacco use is not true?

a. Nicotine narrows blood vessels and puts added strain on the heart.

b. Smoking improves athletic performance.

c. Smoking can wreck lungs.

d. Nicotine in smokeless tobacco is addictive.

Answers

Answer 1

Explanation:

b and c statements are not true

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Answer 2

Answer:

B.) Smoking improves Athletic performance

Explanation:

Related Questions

How many moles are in 99.5 grams of titanium? Round your answer to the nearest hundredth. Be sure to include units.

Answers

Answer:

1000

Explanation:

99.5/ 47.87= 2.078≈2.1 mole

what is this element

Answers

Answer:

Oxygen

Explanation:

From the question given above, the following data were obtained:

Number of electrons = 8

Number of protons = 8

Number of Neutrons = 8

Name of element =?

Next, we shall determine the atomic number of the element. This can be obtained as follow:

The atomic number of an element is simply defined as the number of protons in the atom of the element. Mathematically, it is expressed as:

Atomic number = proton number

From the question given above,

Number of protons = 8

Therefore,

Atomic number = 8

Comparing the atomic number of the element (i.e 8) with those in the periodic table, we can conclude that the element is oxygen since no two elements have the same atomic number.

help put them in order

Answers

Answer:

hello

Explanation:

hi

If 2.35 L hydrogen gas react with nitrogen gas to form nitrogen trihydride, how many grams of nitrogen will be needed for the reaction to be completed?



0.98 g


0.49 g


21.93 g


1.47 g

Answers

Answer:

1.47 g

Explanation:

30 POINTS HELPP PLEASE

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Answers

1: selective breeding

2:traits

3: crop species

4: domestic

5: diverse

6: artificial

7: uniform

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pLeeease help im so tired and i need to SLEEP. Answer the 1s you know
1. How does the mechanical energy of a ball that is starting to fall compare to its total energy just before it hits the floor?
2. When you stand in sunlight, what form of energy is emitted by the sun?
3. An eye doctor wants to design reading glasses that also function as sunglasses. Should the eye doctor use a reflective-transparent material or a reflective-opaque material for the lenses? Support your claim.

Answers

1. when the ball is just starting to fall, it has high potential but low kinetic energy. when it hits the floor, it has high kinetic but low potential energy
2. heat energy
3. reflective-transparent would be best, as they can reflect some light while let other light through, reflective-opaque would be useless in any circumstances because no light at all would be able to get through
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