What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutron<br> 13:

Review the equation below.

olchik [2.2K]

2KClO3 --> 2KCl + 3O2

3 moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose.

3 0

3 years ago

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An atom with 4 protons, 5 neutrons, and 4 electrons has an atomic mass of _____ amu. (Enter a whole number.)

STatiana [176]

I believe it would be the sum of protons & neutrons which equals 9 amu....

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3 years ago

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The density of water is 62.4 lb/ft3. If a swimming pool holds 10,000 gallons of water, the weight of water in the pool is lbs. (

Semenov [28]

In this case, you are given the water density (62.4lb/ft3) and the water volume (10,000 gallons). But the unit used in the density and gallon is different, so you need to convert it. The calculation would be:

mass= density * volume
mass= 62.4 lb/ft3 * 10,000 gallons * (231 inch3/gallon) * (1 ft3/ 1728 inch3)
mass= 83,416.66 lbs= 81417 lbs

3 0

3 years ago

The following combinations are not allowed. If n and ml are correct, change the l value to create an allowable combination:

Lera25 [3.4K]

The allowable combination for the atomic orbital is n=4, l=2, $m_{l}$ =2.

<h3>What are the three quantum numbers of an atomic orbital?</h3>

Three quantum numbers specify an atomic orbital:

- The principal quantum number, n, which is a positive integer, describes the relative size of the orbital and its distance from the nucleus.

- l is the angular momentum quantum number that is related to the shape of the orbital; l is an integer from 0 to n-1 (so n limits l ),

- $\boldsymbol{m}_{l}$ is the magnetic quantum number that prescribes the three-dimensional shape of the orbital around the nucleus; $m_{l}$ values are integers from -l to =l(l limits ml)

For n = 4, l can four values: 0, 1, 2, and 3. To be consistent with $m_{l}$ =+2the l value must be higher than 1. There are two l values that are consistent with n and $m_{l}$ values: l= 2 or 3

Therefore, the allowable condition is n=4, l=2, $m_{l}$ =2

To know more about quantum numbers, visit: brainly.com/question/16979660

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2 years ago

4. What is the overall nuclear fusion reaction in the Sun? Briefly describe the proton–proton chain.

Pachacha [2.7K]

Nuclear fusion is the source of all energy the Sun releases into space. The Sun fuses hydrogen at a steady rate, thanks to a natural feedback process that acts as a thermostat for the Sun's interior (p-p chain). Solar energy production remains steady because the rate of nuclear fusion is very sensitive to temperature.

<h3>Nuclear fusion</h3>

When two or more atomic nuclei join, one or more new atomic nuclei and subatomic particles are created. This reaction is known as nuclear fusion (neutrons or protons). Energy is released or absorbed depending on how much mass the reactants and products have in common.

The atomic nuclei before and after the reaction had different nuclear binding energies, which is how this difference in mass developed. Active or main sequence stars, along with other high-magnitude stars, are powered by nuclear fusion, which releases enormous amounts of energy. Energy will often be released during nuclear fusion that creates atomic nuclei lighter than iron-56 or nickel-62. Both their mass and nucleon binding energy are relatively high for these elements.

Learn more about Nuclear fusion here:

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2 years ago

What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutron 13: