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3 years ago

When scientist need to work on Sharks and some other fish in water they flip them upside down on their backs because

Chemistry

1 answer:

Zielflug [23.3K]3 years ago

4 0

Answer:

In simple words, Sharks have the ability to enter a trance state. Whenever a shark is flipped upside around it enters a trance-like experience known as tonic immobilization.

That's why, when certain researchers are operating on saw fish with in ocean, they often turn them over. Otherwise, there is a chance that the fish might start panicking and the work of scientist will get tougher.

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What subatomic particle was discovered with the use of a cathode-ray tube

slamgirl [31]

Answer:

The correct answer is: Electron

Explanation:

Electron (e⁻) is the negatively charged subatomic particle that has an electric charge of -1e (−1.6022 ×10⁻¹⁹ C). It was discovered by the English physicist, Sir Joseph John Thomson (J. J. Thomson) in the year 1897 by the cathode ray experiment.

In the cathode ray experiment, Sir Joseph John Thomson used the cathode ray tubes to conclude the presence of negatively charged small subatomic particle, known as electrons, in all atoms.

3 0

3 years ago

Silk is obtained from

Nostrana [21]

Answer:

Silk worm

Explanation:

Silk worms are boiled and the silk around them is removed

7 0

4 years ago

Read 2 more answers

What makes an isotope of an element

ser-zykov [4K]

Answer:

Isotopes of an element share the same number of protons but have different numbers of neutrons. ... This means that all three isotopes have different atomic masses (carbon-14 being the heaviest), but share the same atomic number (Z=6).

Explanation:

6 0

3 years ago

What direction does the energy flow in an exothermic reaction? *

Sedbober [7]

<h3>Answer: In an exothermic reaction, heat flows from the system into the surroundings, increasing the temperature of the surroundings.</h3>

7 0

2 years ago

Read 2 more answers

The vapour pressure of pure benzene at 20 °C is 75 Torr and that of pure methylbenzene is 25 Torr at the same tempera-ture. In a

ss7ja [257]

Answer:

Benzene: 37.5 Torr

Methylbenzene: 12.5 Torr

Explanation:

By Raoult's Law, each substance in a gas mixture contributes to the total pressure of the mixture proportionally to their respective mole fraction. So,

Ppartial = x*P°

Where x is the mole fraction (0.5 for each one because it's equimolar), and P° is the vapor pressure.

Benzene: Ppartial = 0.5 * 75 = 37.5 Torr

Methylbenzene: Ppartial = 0.5 * 25 = 12.5 Torr

3 0

3 years ago