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Virty [35]
3 years ago
8

Which one of the following statements is correct?

Chemistry
1 answer:
adell [148]3 years ago
7 0

Answer:

Tissues form organs, and organs form systems. Hope this helped!

Explanation:

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think about putting a glass of water on the counter, in the freezer, and on a hot stove how does the temperature of the water af
Shtirlitz [24]

The kinetic energy and the physical state of water depend strongly on the temperature;

  • Firstly, The kinetic energy of water on a hot stove is higher than that on the counter in the freezer; that the kinetic energy is directly proportional to the temperature according to the relation: K = \frac{3RT}{2NA} ; where R is the universal gas constant, T is the temperature and NA is Avogadro number.

As the temperature increases, the speed of colliding molecules increases and the kinetic energy increases.

  • Secondly, The physical state of water depends on the temperature; water has three states (gas, liquid and solid) depends on the temperature.
  • If a glass of water is putt on the counter in the freezer, it will be converted to the solid state (ice).
  • And, as if it is putt on a hot stove, it will be vapor (gaseous state).

3 0
3 years ago
Help me now plssssssss i will give brainliest!!!!!!!!!!!!!!!!!!!!!!!
yanalaym [24]

Answer:

products are copper and aluminium chloride

reactants are aluminium and copper chloride

Explanation:

products are formed at the end of a reaction

reactants are what's reacting to form the products ie the things at the start of the equation

4 0
2 years ago
Is holding an ice cube on your hand a chemical change?
Strike441 [17]
Yes. its a chemichal change.
7 0
3 years ago
17. When does radioactive decay occur?
svlad2 [7]

The correct options are as follows:

17. C.

Radioactive decay refers to the process by which an unstable atomic nucleus loses energy by giving out radiations. The radiations emit can be in form of alpha or beta particles or gamma rays. Radioactive decay is a random process, that is, one can not predict when it would happen. Radioactive decay occurs when the nucleus of an atom decay and no longer have enough binding energy to hold the atomic sub particles together.

18. B.

Radioactive decay occurs when the nucleus no longer have enough energy to hold the sub particles in the nucleus together. This situation always occur when there are excess protons or neutrons in the nucleus of the atom. In the nucleus of an atom, two forces are usually at work, nuclear and electrostatic forces. While proton experience both of these forces, neutron only experience the nuclear force. These two forces that are in opposition bring about radioactive decay.

3 0
2 years ago
Read 2 more answers
Qual é a diferença entre um a corrente elétrica e a diferença potencial elétrica?
Natalija [7]

Answer:

Eu não falo português, usei o Google Translate. Desculpe se o texto está incorreto!

Explanation:

A corrente é um fluxo de carga. A corrente é medida através de um componente. Diferença potencial é a energia usada entre dois pontos em um circuito.

7 0
3 years ago
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