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lora16 [44]
3 years ago
10

An atom has no overall charg if it contains equal number of

Chemistry
2 answers:
Kisachek [45]3 years ago
5 0
Protons and electrons.

Colt1911 [192]3 years ago
4 0
Protons (positively charged) and electrons (negatively charged). They would cancel each others charges out thus causing the atom to have a neutral or no charge. 
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I need help asap! !!
tekilochka [14]
The answer is the answer that answers this question which gives u the answer
3 0
3 years ago
Which of the following are SI units? Select<br> all that apply.
Dimas [21]
<h3>Answer:</h3>

Seconds (s)

Liters (L)

<h3>Explanation:</h3>

SI units relate to the International System of Units. These units are the base, metric units that are most commonly accepted for different measurements.

Common SI Units

The most common SI units are as follows:

  • Length - meter (m)
  • Time - second (s)
  • Mass - kilogram (kg)
  • Amount of substance - mole (mole)
  • Electric current - ampere (A)
  • Temperature - kelvin (K)
  • Volume - liter (L)

*Note that gram (g) is not an SI unit

Each type of measurement will only have 1 SI unit. This is the unit that will be expected for most answers. Sometimes this means converting an answer into a different unit so it is more widely accepted.

Why SI Units are Important

SI units are important for the same reason that the metric system is used. It gives a standardized list of measurements that scientists across the world can use. Also, it makes it easier to compare scientific findings and studies when all of the measurements are given in the same units.

There are times when it is unrealistic to use SI units. For example, when discussing space, using meters will not be realistic due to the size of space. Also, when measuring the mass of small elements, kilograms are too large. But otherwise, SI units should be used.

3 0
1 year ago
Compare the vapor pressure curves of 1-butene and 1-heptene. Explain your reasoning.
bixtya [17]
Because for there health

5 0
3 years ago
Read 2 more answers
A diffusion coefficient KG was determined for the diffusion of a gas A through a stagnant film B [KG = 0.88 mol//h-ft2-atm].
Angelina_Jolie [31]

Explanation:

Transfer of mass A into stagnant film B depends on the availability of driving force.

Whereas driving force is the pressure difference at the surface of A and the bulk.

As,       N_{A} \propto (P_{A1} - P_{A2})

           N_{A} = K_{G} \times (P_{A1} - P_{A2})

Therefore, putting the given values into the above formula as follows.

         N_{A} = K_{G} \times (P_{A1} - P_{A2})

                     = 0.88 \times (0.2 atm - 0.05 atm)

                     = 0.132 mol/h.ft^{2}

Thus, we can conclude that the flux of A from a surface into a mixture of A and B is 0.132 mol/h.ft^{2}

4 0
3 years ago
Explain why the dissolved component does not settle out of a solution
Novosadov [1.4K]
<span>explain why the dissolved component does not settle out of a solution -
</span><span>Before saturation, there are attractive forces between solute and solvent. after saturation, the capacity for the attractive forces is reached and no more solute can be dissolved</span>
8 0
3 years ago
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