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4 years ago

Which statement best illustrates vibrational motion?

Chemistry

2 answers:

jekas [21]4 years ago

8 0

C. Cello playing music at a concert

Irina18 [472]4 years ago

4 0

Answer:

c.a cello playing music at a concert

Explanation:

Vibration motion is produced when the strings of a cello are plucked by a musician. Vibration in a string produces a wave, and the vibrating string produces a sound of a certain frequency. Most often we see the tension of a string gets adjusted, and thus help to create a sound or music of a definite frequency.

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3. A 650 mg sample is analyzed and found to contain

JulsSmile [24]

Answer:

7.85% of Hydrogen in the sample.

Explanation:

51/650 = .07846 x 100= 7.846% (round up)

6 0

4 years ago

What is the atmospheric layer in which solar energy strips electrons from nitrogen and oxygen atoms, causing them to become posi

Vera_Pavlovna [14]

Answer:

thermosphere

Explanation:

The presence of the isolated molecules of gas in the thermosphere which includes the ionosphere is further broken into smaller ions particles by sun electrons that strip the oxygen and the nitrogen molecules and these ionized gases make up the ionosphere that about 80 o 400 km.

6 0

4 years ago

What is the electric charge of a Proton?

irga5000 [103]

A proton has a positive charge of 1

5 0

3 years ago

Are ionic compounds stronger than covalent compounds?

uysha [10]

Answer:

Ionic bonds result from the mutual attraction between oppositely charged ions. They tend to be stronger than covalent bonds due to the coulombic attraction between ions of opposite charges.

Explanation:

8 0

3 years ago

What is the concentration of the barium hydroxide solution if 50.0 mL of a 0.425 M HNO3 solution is required to neutralize a 36.

fomenos

The molarity of Barium Hydroxide is 0.289 M.

<u>Explanation:</u>

We have to write the balanced equation as,

Ba(OH)₂ + 2 HNO₃ → Ba(NO₃)₂ + 2 H₂O

We need 2 moles of nitric acid to react with a mole of Barium hydroxide, so we can write the law of volumetric analysis as,

V1M1 = 2 V2M2

Here V1 and M1 are the volume and molarity of nitric acid

V2 and M2 are the volume and molarity of Barium hydroxide.

So the molarity of Ba(OH)₂, can be found as,

$$ M2 = \frac{V1 \times M1}{2 \times V2}$

$$M2 = \frac{50 \times 0.425 }{2 \times 36.8}$

= 0.289 M

5 0

4 years ago