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Zanzabum
3 years ago
14

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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The molar mass of argon is 40 g/mol. what is the molar mass of a gas if it effuses at 0.91 times the speed of argon gas?
Gemiola [76]
To determine the molar mass of the unknown gas, we use Graham's Law of Effusion where it relates the effusion rates of two gases with their molar masses. It is expressed as r1/r2 = √M2/M1. We calculate as follows:
Let 1 = argon gas      2 = unknown gas
r2 = 0.91r1r1/r2 = 1/0.91
1/0.91 = √M2/M1 = √M2/40M2 = 48.30 g/mol
8 0
4 years ago
Read 2 more answers
You are given a sample of several compounds to separate by paper chromatography. You draw a pencil line exactly 1.00 cm from the
Pavel [41]

Answer:

a) 6.3 cm

b) 8.0 cm

c) 0.7875

Explanation:

(a) The compound has moved above upto 7.3 cm from the bottom of the paper. Let us assume that line is drawn at 1.0 cm mark as the origin of spot. \

Distance traversed by compound= 7.3 - 1.0 cm = 6.3 cm

(b) Distance traversed by the solvent = 9.0 - 1.0 cm = 8.0 cm

(c) The Rf = Compound Migration distance / Solvent front migration distance

                      = 6.3/8.0 = 0.7875

7 0
3 years ago
Which term is affected by the shape of a particle?
sattari [20]
My feet and my toes and my goated shmoated attitude
3 0
3 years ago
Can someone help me out
Xelga [282]
Yea the first one my guy
4 0
3 years ago
58-Ni has an atomic number of 28 which are the protons and a mass number of 58. Since the mass number is 58 this is the protons
Kaylis [27]

Answer:

Explanation: Nickel is element number 28 on the period table with a mass number 58 or 60, it exist in two forms and the phenomenon is known as isotopy

Definition of Isotopy is simply a phenomenon whereby elements exist in various forms that have the exact same chemical properties but different atomic mass.

58-Ni has atomic number 28 because that's the number o the element on the periodic table. Proton number is the same as atomic number and same as electron number for a neutral element or element without charge.

Mass number = Proton number (P) + Neutron number (N)

58 = 28 + N

N= 58-28

N= 30

58-Ni has 28 has the atomic number, proton number and electron number because it is a neutral atom but the neutron is 30 as shown in the calculation above.

60-NI+2 has a contrasting figure because the element has a charge of +2

Mass number= Proton + Neutron

60 = 28 + N

N= 60 - 28

N= 32

Electron = Proton - Charge

                 28 - (+2)

                  28 - 2

Electron = 26

The number of electron in 60-Ni +2 differs from 58-Ni because of the number of charge

Electron number differs from proton number in any element with a charge.

5 0
4 years ago
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