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lara [203]
3 years ago
7

PLEASE SOMEONE HELP dont mind the answers in there already

Chemistry
1 answer:
iVinArrow [24]3 years ago
4 0

Answer:

4. Daughter nuclide

5. Fusion

6. Strong nuclear force

Explanation:

4. When an atom of an element decays to a new element, the new element is called the

In a radioactive decay in nuclear physics, the product of the decay which is usually smaller (loss in mass) than its source and may or may not be radioactive is the daughter nuclide. Its source is the parent nuclide

5. Nuclear fusion is the nuclear process that involves the combination of two or more (light) atoms to produce subatomic particles and one or more atomic nucleus accompanied by an emission or absorption of energy due to the difference between the weight of the reactants and the weight of the products

The given reaction, is presented as follows;

³₂He + ¹₁H → ⁴₂He + ⁰₁e

Therefore, given that two atoms, (³₂He and ¹₁H) combine to form one atom (⁴₂He) and a subatomic electron particle (⁰₁e), the reaction is a fusion reaction

6. What keeps a nucleus together

The nucleus is made of neutrons and protons. There is an attractive nuclear force between protons and neutrons and a repulsive electromagnetic force between two or more protons. However, due to the proximity of the of the neutrons and the protons, which are together known as the nucleons, the attractive nuclear force is stronger than the electromagnetic force pushing the protons away from each other and the nucleus is kept together

Therefore, the strong nuclear force keeps the nucleus together.

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love history [14]

Answer:

d

Explanation:

3 0
3 years ago
Which statement describes solstices?
RSB [31]

Answer:

Option A (They happen as the Sun hits its maximum and minimum level throughout the sky) is the correct option.

Explanation:

  • Solstice seems to be the moment whereas at noon this same sun achieved its maximum as well as minimum position, actually results throughout the year's shortest as well as biggest days.  
  • We currently believe that perhaps the solstice seems to be an apocalyptic event, exacerbated either by the tilt of the globe’s axis and therefore its direction of movement in an elliptical orbit. Globe's rotation not everyone's travel time from either the sun was what was causing winter or even just summer.

Some other options given should not be in accordance with the given context. So, the correct approach would've been option A.

7 0
3 years ago
Read 2 more answers
When 131.0 mL of water at 26.0°C is mixed with 81.0 mL of water at 85.0°C, what is the final temperature? (Assume that no heat i
JulsSmile [24]

Answer:

63.52°C is the final temperature

Explanation:

1) 131.0 mL of water at 26.0°C

Mass of water = m

Volume of the water =131.0 mL

Density of the water = 1.00 g/mL

Density=1.00 g/mL=\frac{m}{131.0 mL}

m = 131.0 g

Initial temperature of the water = T_i = 26.0°C

Final temperature of the water = T_f

Change in temperature ,\Delta T=T_f-T_i

Heat absorbed 131.0 g of water = Q

Q=m\times c\times \Delta T

2) 81.0 mL of water at 85.0°C

Mass of water = m'

Volume of the water =81.0 mL

Density of the water = 1.00 g/mL

Density=1.00 g/mL=\frac{m'}{81.0 mL}

m' = 81.0 g

Initial temperature of the water = T_i' = 85.0°C

Final temperature of the water = T_f'

Change in temperature ,\Delta T'=T_f'-T_i'

Heat lost by 81.0 g of water = Q'

Q'=m'\times c\times \Delta T'

After mixing both liquids the final temperature will become equal fro both liquids.

T_f=T_f'

Since, heat lost by the water at higher temperature will be equal to heat absorbed by the water at lower temperature.

Q=-Q' (Law of conservation of energy.)

Let the specific heat of water be c

m\times c\times \Delta T=m'\times c\times \Delta T'

131.0 g\times c(T_f-26^oC)=-(81.0.0 g\times c(T_f-85^oC))

T_f=63.52^oC

63.52°C is the final temperature

4 0
3 years ago
Form which sphere does most water evaporate?
blondinia [14]
The hydrosphere contains all the water
6 0
3 years ago
Read 2 more answers
Adsorption is a phase conversion process that changes a mixture component from one state of matter to another. True False
navik [9.2K]

<u>Answer:</u>

<em>Adsorption is a phase conversion process that changes a mixture component from one state of matter to another is a </em><u><em>false statement.</em></u>

<em></em>

<u>Explanation:</u>

Adsorption is a process in which a solute accumulates on the surface of an adsorbent to form an atomic film.

The solute may be a gas or a liquid and the adsorbent will be a solid.

The resultant atomic film what we get is known as an adsorbate.

So molecules accumulate on the external or internal surface of the solids.

3 0
3 years ago
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