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Mariana [72]
2 years ago
9

nuclear reactions can be written out in equation form with information about the nuclei that are produced. in one to two sentenc

es, explain how you would identify the reaction as fusion, and give two different criteria.
Chemistry
1 answer:
Umnica [9.8K]2 years ago
7 0

Nuclear fusion involves the combination of two light nuclei to form a heavier nucleus with emission of energy.

A nuclear reaction equation is a representation of the change that takes place as one nucleus is converted to another. A nuclear transformation could be any of the following;

  • Nuclear fission
  • Nuclear fusion
  • Transmutation

We can know that a nuclear fusion is taking place when two nuclei come together to form a larger nucleus and emit energy. I would identify a nuclear fusion when;

  • Two light atom combine to give a larger nucleus
  • Tremendous energy is produced

Learn more: brainly.com/question/1527403

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When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solu
gtnhenbr [62]

Answer:

The unknown solution had the higher concentration.

Explanation:

When two solutions are separated by a semi-permeable membrane, depending on the concentration gradient between the two solutions, there is a tendency for water molecules to move across the semi-permeable in order to establish an equilibrium concentration between the two solutions. This movement of water molecules across a semi-permeable membrane in response to a concentration gradient is known as osmosis. In osmosis, water molecules moves from a region of lower solute concentration or higher water molecules concentration to a region of higher solute concentration or lower water molecules concentration until equilibrium concentration is attained.

Based on the observation that when the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level rises, it means that water molecules have passed from the glucose solution through the semipermeable membrane into the unknown solution. Therefore, the solution has a higher solute concentration than the glucose solution.

3 0
3 years ago
Methane burns in oxygen to produce carbon dioxide and water. Which of the following represents a preliminary, unbalanced equatio
german

The correct option is: CH4 + O2 → CO2 + H2O.

In writing chemical equations, the reactants are usually written to the left of the equation of the reaction while the products are written to the right of the reaction. An arrow pointing in the right direction shows the direction of the reaction. In the question given above, methane and oxygen are the reactants while carbon dioxide and water are the products. The options that states the chemical reaction correctly is option 1.

3 0
2 years ago
Read 2 more answers
Brainliets and a lot of points to ever answers all questions and get all right
Juli2301 [7.4K]

Answer:

try at your own

4 0
3 years ago
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A piece of metal with a mass of 142 g is placed in a 50 mL graduated cylinder. The water level rises from 20 mL to 40 mL. What i
zheka24 [161]

Explanation:

The end goal of this question is to find density. Density can be found using the following formula:

D=m/v

D=Density

m=mass

v=volume

Therefore we need mass and volume to find density. Mass is already given in the question as 142g. All we have left is volume. When a solid is placed in water in a graduated cylinder the volume goes up. This means if you subtract the volume after the metal was placed from before it was placed, you can find the volume of the metal. Therefore the volume of the metal is 40mL-20mL=20mL. However typically, volume is found in liters so the volume should be .04L-.02L=0.02L. Now that we have volume and mass we can find density using the formula d=m/v. So 142/.02=7,100 grams per liget or 7.1 kilograms per liter. This answer seems unrealistic so I would double check with your teacher about the question.

Hope I helped, 2Trash4U

5 0
3 years ago
How many grams of H2O will be produced if 750. grams of Fe are produced?
aleksandr82 [10.1K]

Answer:

\boxed{\small \sf \: Mass \:  of  \: H_2O =322.2 \: grams}

Explanation:

<em>Given:</em>

Mass of ferous (Fe) produced = 750 gram.

<em>To find:</em>

Mass of water produced= ?

<em>Solution:</em>

<em>Molar mass of Fe is 55.84 gram/</em><em>mol</em>

Let's find out the number of moles of ferous produced.

\small \sf Number  \: of  \: moles  =  \frac{Given  \: mass \:  of \:  substance }{Molar \:  mass \:  of \:  substance}

Substituting the given data in above formula.

\small \sf Number  \: of  \: moles  =   \frac{750}{55.84}

\boxed{\small \sf Number  \: of  \: moles \: of \: Fe= 13.43 \: moles}

Now the given reaction is,

Fe_3O_4 + 4H_2  \rightarrow 3Fe + 4H_2O

  • For every 3 mole of production of Fe, 4 mole of waters are produced.
  • let for 13.43 moles of Fe x moles of H2O will be produced.

now calculate the number of moles of H2O

\sf \: \frac{3}{4}  =  \frac{13.43}{x}  \\  \sf x =  \frac{13.43 \times 4}{3}   \\  \sf x = 17.90 \: moles

\small \boxed{\sf number \: of \: moles \: of  \: H_2O= 17.90 \: moles}

mass of one mole of H2O is 18 gram, so we can calculate mass of 17.90 moles.

\small \sf \: Mass \:  of  \: H_2O = 17.90 \times 18 \\    \boxed{\small \sf \: Mass \:  of  \: H_2O =322.2 \: grams}

<em><u>Thanks for joining brainly community!</u></em>

3 0
2 years ago
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