Which requires the removal of heat, melting or freezing?Is it evaporation? What is it? Why?

Answers

Answer 1

Answer: Freezing. If you take away energy from something, (lower its temperature), it will freeze. If you add heat to something, it will melt if it is a solid and evaporate if it is a liquid.

When you add energy to something, the atoms which comprise the substance jiggle and vibrate, meaning that on a large scale, a solid will become a liquid, and a liquid will become a gas.

Answer 2

Answer: Freezing, just think about it, the colder it gets the more likely there is going to be snow/ hail/ ice

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The number of electrons in atoms can change when elements combine to formA. isotopes
B. molecules
C. compounds

Answers

The number of electrons in an atom changes when elements combine to form compounds. The molecules are the combination of elements where the number of total electrons increases.

What are compounds?

Compounds are formed by the combination of atoms of different elements. The properties of compounds are different from that of the individual elements which constitutes the compound.

Molecules are the combination of same kind of elements . They are formed through chemical bonding. There are different types of bonding such as covalent bonding, ionic bonding etc.

Isotopes are atoms of same element having different mass numbers. When elements combines through chemical bonding, the number of valence electrons surrounding the atom changes.

To find more on compounds, refer here:

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It can change in C. compounds to change when elements combine that will form

Cells get energy from food to sustain the life of the organism.Which statement supports this part of the cell theory?
A. Cells are the basic units of life.
B. All cells come from pre-existing cells.
C. All organisms are made up of 1 or more cel

Answers

Answer:

A. Cells are the basic units of life.

Explanation:

The statement that supports that cells get energy from food to sustain the life of the organism is option A. Cells are the basic units of life. Every living thing on the planet needs food to survive and make their internal mechanism work, the cell is the smallest unit of life that does this to keep alive.

The answer is B hope this helped

The cell wall is a rigid structure that surrounds plant cells. The materials found in the cell wall protect the plant cells and give plants structural support.Which conclusion can be made given the above information?
The structures of different types of cell organelles are similar.

The functions of most cell organelles are hindered by their structures.

The structure of a cell organelle is directly related to its function.

The function of a cell organelle can change over time.

Answers

Answer:

The correct answer will be option- The structure of a cell organelle is directly related to its function.

Explanation:

The cell wall is a layer formed around the plasma membrane of the plant cell which helps plant cell by providing stiffness and support to the cell. This cell wall provides protection to the plant cells.

Since the presence of cell wall around the plasma membrane shows that it has a specific function and serves an important function of the plant cell, similarly the structure of various organelles present in the cell is related to their function. The best-known example is the inner folding of the mitochondria called cristae to increase the surface area.

Thus, the selected option is the correct answer.

The structure of a cell organelle is directly related to its function because for example, us. Humans have cells throughout their body. In fact, these cells are all the same. But these cells don't perform the same tasks or else we wouldn't be able to walk, sleep, talk, breath, and bend the way we do.

An atom with atomic number of 6 would have how many protons?