Select which of the following is a major disadvantage of using nuclear power to generate electricity.

What subatomic particle gives off visible light when it drops back down to a lower energy state?

Black_prince [1.1K]

The subatomic particle that gives off visible light is electrons

4 0

4 years ago

An organic chemistry student was studying the solubility of Methyl-N-acetyl-α-D-glucosaminide (1-O-methyl-GlcNAc), a derivative

strojnjashka [21]

Complete Question

The diagram for this question is shown on the second uploaded image

Answer:

The organic product obtained is shown on the first uploaded image

Explanation:

The process that lead to this product formation is known as oxidative cleavage which is a reaction that involves the cleavage of a carbon to carbon bond at the same time this carbon which formed the carbon bond are oxidized i.e oxygen is been added to them

4 0

3 years ago

Calculate the amount of miles of HCI is needed to make 500.0 mL of a 0.200M solution

frozen [14]

Answer: 0.4 moles

Explanation:

Given that:

Amount of moles of HCI = Z (let unknown value be Z)

Volume of HCl = 500.0 mL

Convert 500.0 mL to liters

If 1000ml = 1L

500.0 mL = (500.0 mL/1000mL) = 0.5L

Molarity of HCl solution = 0.200M

Recall that molarity of a solution is obtained by dividing the amount of moles by volume in liters

i.e Molarity = Amount in moles/volume

0.200M = Z x 0.5L

Z = 0.200M / 0.5L

Z = 0.4 moles

Thus, 0.4 moles of HCl is needed to make the solution

3 0

3 years ago

benzoic acid and naphthalene was dissolved in tert-butyl methyl ether and the resulting solution was extracted with aqueous sodi

devlian [24]

Answer:

Explanation:

Sodium benzoate forms when benzoic acid reacts with sodium bicarbonate. Since benzoic acid is readily soluble in ether than water, the salt of benzoic is more soluble in water than in ether because it is ionic and very polar. water which is the lower layer will contain sodium benzoate.

After separating the lower layer, if acidified with Hcl,benzoic acid will be regenerated, it precipitates out as a result of its low solubility in water.

3 0

4 years ago

Which statement explains the energy term in this reaction

lana66690 [7]

Answer:

Mass is lost due to the conversion of mass to energy

Explanation:

The question is not complete, the complete question is given as:

$^{235}_{72}U +^{1}_{0}n$ ⇒ $^{140}_{56}Ba+^{93}_{36}Kr+3^{1}_{0}n+energy$

total mass equals 236.053 u total mass equals 235.868 u

Which statement explains the energy term in this reaction? (1) Mass is gained due to the conversion of mass to energy. (2) Mass is gained due to the conversion of energy to mass. (3) Mass is lost due to the conversion of mass to energy. (4) Mass is lost due to the conversion of energy to mass.

Answer: From Einstein’s equation E = mc², when a radioisotope element undergoes fission or fusion in a nuclear reaction, it loses a tiny amount of mass.This mass lost is converted to energy.

The law of conservation of energy holds for this type of reaction (i.e the sum of mass and energy is remains the same in a nuclear reaction). Mass changes to energy, but the total amount of mass and energy combined remains the same before and after a nuclear reaction.

From the reaction above, the total decrease in mass = 236.053 - 235.868 = 0.185 u

4 0

3 years ago