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irina1246 [14]
3 years ago
10

In 2005, scientists use cells from a dog named Tai to produce a new puppy with DNA identical to Tai’s. What genetic technology w

as used?
Chemistry
2 answers:
vladimir2022 [97]3 years ago
8 0

Answer:

cloning

Explanation:

Clonning is when a copy or clone of an animals genetics or genes are copied and made again like what happened to tai.

In-s [12.5K]3 years ago
6 0

Answer:

cloning

Explanation:

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Answer:

energy

Explanation:

The photon of light that is emitted as an electron drops back to its original orbit is energy and this energy is released during de-excitation process.

The electron is jumped into higher level and back into lower level by absorbing and releasing the energy.

The process is called excitation and de-excitation.

Excitation:

When the energy is provided to the atom the electrons by absorbing the energy jump to the higher energy levels. This process is called excitation. The amount of energy absorbed by the electron is exactly equal to the energy difference of orbits.  For example if electron jumped from K to L it must absorbed the energy which is equal the energy difference of these two level. The excited electron thus move back to lower energy level which is K by releasing the energy because electron can not stay longer in higher energy level and comes to ground state.

De-excitation:

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3 years ago
Remical Reactions 8.P.13 1 8 of 40
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H₂O + CO₂      →    H₂CO₃

Option D is correct.

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According to this law, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

Now we will apply this law to given chemical equations:

A) H₂ + O₂   →    H₂O

There are two H and two O atoms present on left side while on right side only one O and two H atoms are present so mass in not conserved. This option is incorrect.

B) Mg + HCl   →   H₂ + MgCl₂

In this equation one Mg, one H and one Cl atoms are present on left side of equation while on right side two H, one Mg and two chlorine atoms are present. This equation also not follow the law of conservation of mass.

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There are one K, one Cl and three O atoms are present on left side of equation while on right side one K one Cl and two oxygen atoms are present. This equation also not following the law of conservation of mass.

D)  H₂O + CO₂      →    H₂CO₃

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3 years ago
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Answer:

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Explanation:

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When an alpha particle is released, the original atom loses 2 protons and and 2 neutrons an we can see in the example.

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