Which missing item would complete this beta decay reaction?

Answers

Answer 1

Answer: The question is incomplete. Complete question is attached below:
.................................................................................................................

Correct Answer is : 54 131Xe

Reason:
Emission of beta particle from radioactive material increases atomic number by one, but atomic mass number donot change.

In present case, the reactant is 53 131 I. When, iodine emits beta particle i.e. electron, it atomic number increases by one. Hence, it gets converted into Xe. Atomic number of Xenon is 54.

Answer 2

Answer:

The equation must include the parent and the daughter nucleus as well as the particle emitted.

What is beta decay?

A beta decay is said to occur when an electron is emitted from an atom. In this case, the daughter nucleus is greater in atomic number than the parent nucleus by one unit.

The question is incomplete. However, the equation must include the parent and the daughter nucleus as well as the particle emitted.

Learn more about beta decay:brainly.com/question/25455333

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Which gas occupies the highest volume at STP?0.02 mol of O20.1 mol of Cl21 mol of N22 mol of H2

Answers

The correct answer is the fourth option. The gas, 2 mol of H2, occupies the highest volume at STP since at STP the volume of this gas is approximately 44.8 mol as compared to other options this has the greatest amount. At STP, 1 mol of a gas is said to be equal to a volume of 22.4 L.

The unit of measure "mL" describes what property of a substance

Answers

It describes the property of a liquid.

i think its volume.......

Consider the following unbalanced redox reaction:MnO4- (aq) + SbH3 (aq) ---> MnO2 (s) + Sb (s)

What is the oxidizing agent in the reaction?

A.) MnO4-

B.) SbH3

C.) MnO2

D.) Sb

Help please?

Answers

You're oxidising agent will be reduced. In the molecule MnO4-, Mn has and oxidation number of +9 and in MnO2 it is +4, therefore its oxidation number has reduced, therefore Mn is reduced, therefore it is the oxidant/oxidising agent.

Exactly 15.0 g of a substance can be dissolved in 150.0 g of water what is the solubility of the substance in grams per 100 g of water

Answers

The solubility of the substance in grams per 100g of water = 10g

Calculating solubility of water

The solubility of water is the amount of chemical substance that can dissolve to go a solution in the it at a specific temperature.

The quantity of substance given in grams= 15g

This is able to dissolve in water = 150g

Therefore the quantity of the substance that would dissolve in 100g of water = X g

Make X g the subject of formula= 15 × 100/150

= 1500/150

= 10g

Learn more about solubility here:

brainly.com/question/23946616

(15.0 g) / (150.0 g) x (100 g) = 10.0 g/100 g H2O

What would happen if you play a note in a cold day on a flute?

Answers

I don't know if this is the answer you are looking for but it would be flat unless the player pushed the tuning slide in.

Which is the correct expression for Keq when the chemical reaction is as follows:N2 + 3H2 2NH3.

Answers

Answer : The expression for equilibrium constant will be,

$K_(eq)=\fac{[NH_3]^2}{[N_2][H_2]^3}$

Explanation :

Equilibrium constant : It is defined as the number of ratio of the concentration between the products and the reactants at equilibrium.

The equilibrium reaction is,

$aX+bY\rightleftharpoons cW+dZ$

The general expression for equilibrium constant will be,

$K_(eq)=([X]^a[Y]^b)/([W]^c[Z]^d)$

The given balanced chemical reaction will be,

$N_2+3H_2\rightleftharpoons 2NH_3$

The expression for equilibrium constant will be,

$K_(eq)=([NH_3]^2)/([N_2][H_2]^3)$

The expression of the Keq is [NH3]2/([N2][H2]3). The common formula of reaction: ax+by=cz is Keq - [z]c/([x]a*[y]b). Remember to use a balanced chemical reaction.

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