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nataly862011 [7]
3 years ago
4

Which explanation best describes a wave?

Chemistry
2 answers:
Vadim26 [7]3 years ago
4 0

Answer:

<u><em>C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter</em></u>

Explanation:

First: <em>A wave is a disturbance</em>. The disturbance is a vibration, a pulse. If you think in particles, by vibrating one particle causes the a neighboor particle to vibrate too.

Second: <em>A wave travels through a medium</em>, like water, air, solid matter, which is the case of mechanical waves (for instance sound and water warves) and electromagnetic waves (light). Mechanical waves only travel trhough a medium, electromagnetic waves can travel through a medium or through empty space. That is how the sun light can travels trhough space and arrive to our planet.

Third: <em>Waves transfer energy but not matter</em>. Waves move around an equilibrium position but the matter is not translated.

olga55 [171]3 years ago
3 0

Answer:

the answer is c

Explanation:

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Which technology would be the most useful in predicting an eruption from an undersea volcano and why
sveticcg [70]

Answer: Infrasound because sound waves travel easily through water to accessible buoys.

Explanation: its installation: underwater microphones hung from buoys near a volcano. how it works: senses low-frequency sound waves near a volcano. Since in its installation it specifies that it has UNDERWATER microphones and the question asks in predicting an eruption from an UNDERSEA volcano, that makes perfect sense.

8 0
3 years ago
How many atoms are present in 3 moles of chromium?
Murljashka [212]

Answer:

1.80 x 10^24 atoms

Explanation:

3moles × 6.022×10^23 atoms/mole

3 0
3 years ago
What is the true of lewis base
dalvyx [7]

Answer: To answer your question of what is true of a lewis base, it is true that a lewis base donates electron pairs.

Explanation: A Lewis base is any substance, such as the OH- ion, that can donate a pair of nonbonding electrons. A Lewis base is therefore an electron-pair donor.

3 0
3 years ago
A volume of 40.0 mLmL of aqueous potassium hydroxide (KOHKOH) was titrated against a standard solution of sulfuric acid (H2SO4H2
Anni [7]

<u>Answer:</u> The concentration of KOH solution is 1.215 M

<u>Explanation:</u>

For the given chemical equation:

2KOH(aq.)+H_2SO_4(aq.)\rightarrow K_2SO_4(aq.)+2H_2O(l)

To calculate the concentration of base, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH.

We are given:

n_1=2\\M_1=1.50M\\V_1=16.2mL\\n_2=1\\M_2=?M\\V_2=40.0mL

Putting values in above equation, we get:

2\times 1.50\times 16.2=1\times M_2\times 40.0\\\\M_2=\frac{2\times 1.50\times 16.2}{1\times 40.00}=1.215M

Hence, the concentration of KOH solution is 1.215 M

3 0
4 years ago
As the speed increases how does the potential kinetic and total energy levels change
Dafna1 [17]

Hello,


As the speed increases the Energy does not change. This is because of Law of conservation of mass. Energy can be created or destroyed.

Thus the energy levels will stay the same but the form in which the energy is presented may change.


Hope this helps! Have a great day.

7 0
3 years ago
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