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saw5 [17]
3 years ago
9

BRAINLIESTTT ASAP!! PLEASE HELP ME :))

Chemistry
1 answer:
VLD [36.1K]3 years ago
7 0

Answer:

A - thinking of various research topics

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In the bohr model of the hydrogen atom, the radius of the electron orbit increases by a factor of four. What happens to the magn
cricket20 [7]

The magnitude of the orbital angular momentum of the electron is doubled when the radius of the electron orbit increases by a factor of four.

<h3>What is orbital angular momentum?</h3>

The orbital angular momentum is the sum of angular momenta of all electrons, it is the rotational analog of the linear momentum.

The formula of angular momentum

\rm mvr = \dfrac{nh}{2 \pi}

Thus, the magnitude of the orbital angular momentum of the electron is doubled when the radius of the electron orbit increases by a factor of four.

Learn more about orbital angular momentum

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7 0
2 years ago
Brainliest and a free hug :) thank you!!
Elanso [62]

Answer:atoms involved in reaction. Mass remains same in reaction

Explanation: hug would be fine!

7 0
3 years ago
Which term represents a type of nuclear reaction?
wel
D)natural transmutation
7 0
3 years ago
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2 The substance has a mass of 0.50 kg.
katen-ka-za [31]

Answer:

68000J/kg

Explanation:

Given parameters:

 Mass of the substance  = 0.5kg

 Quantity of heat transferred to the body  = 34000J

 

Unknown:

Specific latent heat of fusion = ?

Solution:

The specific latent heat is usually involve in phase changes;

  H  = mL

H is the quantity of heat supplied

m is the mass

L is the specific latent heat

 Insert the parameters and solve;

     34000 = 0.5 x L

         L  = \frac{34000}{0.5}   = 68000J/kg

5 0
3 years ago
The concentration of hydroxide ions is less than the concentration of hydronium ions for acidic solutions. True False
wolverine [178]

Answer:

True

Explanation:

It's true because the pH is a measure of how basic or acid a solution is. In an acidic medium, the pH scales goes from 0 to 7. While in a basic medium goes from 7 to 14. The lower the pH value of the most acid the solution is.

1. The expression pH = -log(molar concentration of hydronium) allow to calculate the pH of a solution.

2. On the other hand, the expression pOH = -log(molar concentration of hydroxide) allow to determine the pOH of a solution.

The values of pH and pOH always obey the following expression:

pH + pOH = 14

Thus if for instance the pH becomes smaller the pOH must become bigger in order to fulfill the equation. Which means that the concentration of hydronium ions is greater than the hydroxide concentration.

For example, in an acidic medium:

if pH= 3, pOH= 11

In this case the molar concentration of hydronium is 0,001M. And the molar concentration of hydroxide ions is just 0,00000000001M.

4 0
3 years ago
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