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Goryan [66]
2 years ago
8

Which equation shows ejection of an alpha particle?

Chemistry
1 answer:
bija089 [108]2 years ago
4 0

In the third equation, the oxygen with atomic weight 16 undergo alpha decay and produce C₆¹³ . The alpha particle emitted is also called helium nuclei. During this decay some gamma radiations also produce as a byproduct.

<h3>What is Nuclear decay reaction ?</h3>

It is also called as radioactive decay during which an unstable nucleus emits radiation and is transformed into the nucleus of one or more other elements.

The atom emit the alpha particles consist of two proton and two neutrons. Which is also called Helium nuclei.

When atom undergoes the alpha emission the original atom convert into the atom having mass number 4 less than and atomic number 2 less than the starting atom.

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

Hence, the oxygen with atomic weight 16 undergo alpha decay and produce C₆¹³  and an alpha particle (He)

Learn more about Nuclear reaction here ;

brainly.com/question/16526663

#SPJ1

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You have a gas at a pressure of 5 atm and a temperature of 300 K, what is the new pressure if the temperature is decreased to 20
lesya [120]

Answer:

3.33 atm

Explanation:

P1/T1 = P2/T2

5 atm/ 300 K = P2 /200K

P2 = 5atm*200 K/300 K

P2 = 3.33 atm

4 0
3 years ago
What is an aqueous solution compound
Vladimir [108]

Answer:

C. Soluble

Explanation:

An aqueous solution is one in which the solvent is liquid water. That is, solute (dissolved) ions and molecules are surrounded by water molecules and incorporated into the network of bonds within the water. The dissolved species then spread throughout the water

7 0
3 years ago
Arrange the three common unit cells in order from least dense to most dense packing. a. face-centered cubic &lt; body-centered c
maks197457 [2]

Answer:

b. primitive cubic < body-centered cubic < face-centered cubic  

Explanation:

The coordination number is defined as <em>the number of atoms (or ions) surrounding an atom (or ion) in a crystal lattice</em>. Its value gives us a measure of how tightly the spheres are packed together. The larger the coordination number, the closer the spheres are to each other.

  • In the <u>primitive cubic</u>, each sphere is in contact with 6 spheres, so its <u>coordination number is 6</u>.
  • In the <u>body-centered cubic</u>, each sphere is in contact with 8 spheres, so its <u>coordination number is 12</u>.
  • In the <u>face-centered cubic</u>, each sphere is in contact with 12 spheres, so its <u>coordination number is 12</u>.

Therefore, the increasing order in density is the primitive cubic first, then the body-centered cubic, and finally the face-centered cubic.

3 0
3 years ago
Calculate the molecular mass of Na2HPO4
seropon [69]

Answer:

Molar mass of Na2HPO4=141.96, of Na2HPO4. 12H2O = 358.14: so to get the same 0.4 M: 28.65/358.14*141.96 g, add water until you reach 200ml , dissolve all solid and then filter to make sterile.

Explanation:

5 0
4 years ago
Which statement about a system at equilibrium is true?(1) The forward reaction rate is less than the reverse reaction rate.(2) T
Stells [14]
(3) the forward reaction rate is equal to the reverse reaction rate
hope this helps!
4 0
3 years ago
Read 2 more answers
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