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igomit [66]
3 years ago
13

What is a solvent?

Biology
1 answer:
drek231 [11]3 years ago
5 0

Answer:

The last one

Explanation:

A solvent is a substance that dissolves a solute

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How do models provide a practical solution for some scientific research? Check all that apply.
suter [353]

Models show systems that are large, small or complex.They make it easy for study through zooming in an area in a large system.They provide visual presentation of an object or a system that has been created through experimental data.

Explanation:

A model is a representation of an idea, a process or an object in a system used by a scientist to describe a phenomenon that is difficult to be experienced directly.The goal of a model is to ensure that the presentation is done in a logical and objective way.

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2 years ago
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The forces from below the surface that change the surface of the earth are
VMariaS [17]

Answer:

yes your right.

Explanation:

4 0
2 years ago
Which process CANNOT occur without carbon dioxide
mart [117]

Answer:

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4 0
3 years ago
Please give a good description of genetic mutations. Thanks!
vivado [14]

Answer: A mutation is a change in a DNA sequence? Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

Explanation:

The most common genetic mutation is, In fact, the G-T mutation.

3 0
3 years ago
Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Na=?
AlladinOne [14]
Atomic number is the number of protons of an atom. And, given that the atoms are electrically neutral and the charge of one proton is equal to the charge of one electron, the number of electrons is equal to the number of protons. So the neutral atom of sodium has 11 protons and 11 electrons. But, the sodium ion (Na+) has one positive charge, that means that it has lost one negative charge or one electron. Then, the sodium ion (Na+) has 11 - 1 = 10 electrons. <span>Then, the answer is that there are 10 electrons in a sodium ion. 

hope this helps :3</span>
5 0
3 years ago
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