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sweet-ann [11.9K]
3 years ago
6

Watson describes how he recognized that the two strands are held together by hydrogen bonds

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
4 0
Think it’s A cause it’s both bases
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Select all that apply.
serious [3.7K]
A beta particle is an electron and it has a -1 charge and zero mass.

Beta decay by emitting an electron is called as β⁻ decay. When this happens, a neutron of the element converts into a proton by emitting an electron. Hence, the mass of daughter nucleus is same as parent atom but atomic number/number of protons is higher by 1 than atomic number of parent atom.

In a β⁻ decay, the symbol is used as ₋₁⁰β or ₋₁⁰e.
             -1 is for charge
<span>              0 is for the mass of the particle

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4 0
3 years ago
Read 2 more answers
An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of the
Katen [24]

Answer: v = 2π2 Kme2 Z / nh

Explanation:

The formula for velocity of an electron in the nth orbit is given as,

v = 2π2 Kme2 Z / nh

v = velocity

K = 1/(4πε0)

m= mass of an electron

e = Charge on an electron

Z= atomic number

h= Planck’s constant

n is a positive integer.

3 0
4 years ago
A graduated cylinder (approximate as a regular cylinder) has a radius of 1.045 cm and a height of 30.48 cm. What is the volume o
Stels [109]

Answer: 104.5 cm^3

Explanation:

6 0
4 years ago
A student mixes chemicals A and B together and records the amount of time it takes for a color change to occur. The student repe
k0ka [10]

Answer:

It is mentioned that the student is mixing chemicals A and B and observes the time taken for the color to change. However, in the experiment, it is noticed that the student has repeated the procedure five times and each time he or she is modifying the concentration of chemical B. Thus, it is clear that the concentration of chemical B is the independent variable in the experiment. An independent variable is illustrated as the variable, which is controlled or modified in the experiment.

8 0
3 years ago
At a temperature of 500 kelvins, 6 liters of an ideal gas had a pressure of 300 newtons
mr Goodwill [35]

Answer A

Explanation:

6 0
4 years ago
Read 2 more answers
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