The model below represents a nuclear reaction. Atom 1 is present before the reaction and Atom 2 and Atom 3 are produced after the reaction. Atom 1 = Atom 2 + Atom 3 + energy

The model most likely represents a reaction which
Select one:
a. takes place when atoms combine
b. takes place when atoms become inactive
c. does not produce energy in the sun
d. does not produce energy in nuclear power plants

Answers

Answer 1

Answer: Option C. Does not produce energy in the sun. Because energy in the sun is produced by fusion; this is the combination of two atoms, and that is the opposite to what the model shows.

Answer 2

Answer:

Answer:

Correct answer is option C (does not produce energy in the sun )

Explanation:

Fusion:

When two light nuclei combined to form a heavy nucleus that time large amount of energy is emitted and this reaction is known as fusion reaction.

In sun energy is produced due to fusion reaction but in this model atom1 is splitting in two light nuclei with emission of energy this type of reaction is known as fission reaction. This type of reaction is used to produce energy in nuclear power plant.So option D is not correct and it does not produce energy in the sun so option C is correct because this is fission reaction and in sun energy is produce due to fusion reaction.

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Which contains more molecules: 1.00 mol H2O2, 1.00 mol C2H6, or 1.00 mol CO?

Answers

I believe H2O2 has the most, because it also has the most atoms (34)
Hope that helps!!

Why did Rutherford conclude that the atom was mostly empty space?

Answers

Rutherford came to this conclusion after his Gold-Foil experiment. He found that most of the alpha particales(when released) went straight through the gold foil, of which consisted of atoms. In the middle of the atom theres a small nucleus that has mass and positive charge. Because the nucleus is so small the alpha particles were able to go straight through leading to the conclusion that atoms are mostly empty space.

Jack, an Investigator, wants to prove that a certain suspect was present at the crime scene when the crime was committed. What kind ofevidence should he look for?

Jack should look for __________ evidence because the analysis of such evidence can prove whether the person was present when the crime
was being committed. This evidence refers to tiny fragments of material that can be transferred from a human to a human or human to a
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Answers

Answer: TRACE evidence

Explanation: Any evidence that can be transferred from one person to another or one person to a place is trace evidence. Also I took the test.

The concentration of a solution can be expressed in(1) kelvins
(2) milliliters
(3) joules per kilogram
(4) moles per liter

Answers

The concentration of a solution can be expressed in (4) moles per liter

Further explanation

Stoichiometry in Chemistry learn about chemicals mainly emphasizes quantitative, such as the calculation of volume, mass, number, which is related to numbers, molecules, elements, etc.

In the reaction there are also manifestations of reagent substances namely gas (g), liquid (liquid / l), solid (solid / s) and solution (aqueous / aq).

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Kelvin

Temperature is used as a guide to the level of heat energy from objects

Temperature cannot be measured by the surface of the hand because it is not accurate but can be measured by a thermometer. Temperature units include Celsius, Fahrenheit, Reamur or Kelvin

milliliters

Volume is a derivative quantity derived from the length

The unit of volume can be expressed in liters or milliliters or cubic meters

joules per kilogram

Energy can be interpreted as the ability to do work

Energy units can be stated in joules or calories (J or Cal)

moles per liter

Mole

The mole itself is the number of particles contained in a substance amounting to 6.02.10²³

Mole is the result of dividing the amount of substance mass and its molar mass

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

So to find the number of moles can be expressed as

n = V x M

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The concentration of a solution can be expressed in (4) moles per liter~

Given the balanced equation representing a reaction occurring in an electrolytic cell:

Answers

An electrolytic cell where electrolysis occurs which consists of an electrolyte where current from an outside source is passed through in order to produce an electrochemical cell.

Which is true about the dissolving process in water? Nonpolar solutes dissolve easily in water. Solute molecules surround water molecules. Molecules or ions of a solute spread throughout the water molecules. Water molecules are repelled by solute ions at the surface of the solute.

Answers

The simple principle for solute dissolution in a particular solvent is "like dissolves like". In the case of water, a solute will dissolve if it is polar. This is because water is a polar solvent. A polar substance is one which has particles that have a net charge on them. This net charge produces forces of attraction. When a polar solute is added to water, the water molecules are attracted to the solute particles and they attach to them. After attaching to the water molecules, the solute particles are dispersed throughout the water. Therefore, the answer is molecules or ions of a solute spread throughout the water molecules.

Answer:

C. Molecules or ions of a solute spread throughout the water molecules.

Explanation:

C. Molecules or ions of a solute spread throughout the water molecules.

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