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3 years ago

Helllppp meee!! Please

Chemistry

2 answers:

Mashcka [7]3 years ago

8 0

I believe it’s C I might be wrong

neonofarm [45]3 years ago

3 0

Answer:

a bus moves on a straight road then makes a right turn

Explanation:

yes

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What is the lewis structure for silicon tetrachloride, SiCl4?

SCORPION-xisa [38]

Answer:

two dots around each side.

Explanation:

6 0

2 years ago

As a biologist, you are researching a population of moles. In the course of your research, you identify a nearby population that

Natalka [10]

Answer:

The evolutionary process at work is best described by option B. gene flow

Explanation:

Gene flow also known as migration is any movement of individuals, and/or the genetic material they carry, from one population to another. If gene versions are carried to a population where those gene versions previously did not exist, gene flow can be a very important source of genetic variation. In this case, the nearby population migrates to the mole population. The diagram is a good description of the Gene flow process.

4 0

3 years ago

A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component t

Serggg [28]

Answer: mole fraction of methanol = 0.590

mole fraction of ethanol = 0.410

Explanation:

We are given:

Equal masses of methanol $CH_4O$ and ethanol $C_2H_6O$ are mixed.

let the mass be x g.

Calculating the moles of methanol in the solution, by using the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{xg}{32.04g/mol}$

Calculating the moles of ethanol in the solution, by using the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{xg}{46.07g/mol}$

To calculate the mole fraction of methanol, we use the equation:

$\chi_{methanol}=\frac{n_{methanol}}{n_{methaol}+n_{ethanol}}$

$\chi_{methanol}=\frac{\frac{xg}{32.04g/mol}}{\frac{xg}{32.04g/mol}+\frac{xg}{46.07g/mol}}=0.590$

To calculate the mole fraction of ethanol, we use the equation:

$\chi_{ethanol}=\frac{n_{ethanol}}{n_{methaol}+n_{ethanol}}$

$\chi_{ethanol}=\frac{\frac{xg}{46.07g/mol}}{\frac{xg}{32.04g/mol}+\frac{xg}{46.07g/mol}}=0.410$

Thus mole fraction of methanol is 0.590 and mole fraction of ethanol 0.410 in three significant figures.

5 0

2 years ago

Los isomeros ópticos

krek1111 [17]

Answer:

Los isómeros ópticos son dos compuestos que contienen el mismo número y tipo de átomos, y enlaces (es decir, la conectividad entre los átomos es la misma), y diferentes disposiciones espaciales de los átomos, pero que tienen imágenes especulares no superponibles. Cada estructura de imagen especular no superponible se denomina enantiómero.

Explanation

7 0

3 years ago

Why are naturally occurring substances, such as particulates or carbon dioxide, sometimes considered pollutants?

____ [38]

Because despite being natural they still harm the ozone layer and cause breathing problems, even suffocation.

5 0

2 years ago

Read 2 more answers