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Radda [10]
3 years ago
10

How can you know if evolution has occured within species?​

Chemistry
1 answer:
Murrr4er [49]3 years ago
4 0

You can use the HWE (Hardy Weinberg Equilibrium) equations :

p + q = 1

p^2 + 2pq + q^2 = 1

If the allele combinations do not equal one after a while, evolution has occurred.

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Why is BCl3 a non-polar compound?​
Firdavs [7]

Answer:

BCI3 is a non polar compound because there is no neutral in it

4 0
3 years ago
Will mark brainliest!!
just olya [345]

Answer:

magnesium= +2

aluminum= +3

phosphorous= -3

lithium= +1

fluorine= -1

Explanation:

As fluorine having seven valance electrons in its outer most shell with atomic number nine. And for completing its outer most shell it needs one more electron that is why it form ion of -1 value.

Now  Aluminum has three electrons in its outer most shell with atomic number 13. So it need to lose these three electrons in order to be in stable state that is why it have ion in +3 state.

Same rule apply for other elements too.

5 0
3 years ago
Read the description of how ancient metalworkers improved their iron. Then identify the solute and solvent by filling in the bla
slega [8]

Answer:iron and carbon

Explanation:I took the test it’s iron and carbon

6 0
3 years ago
Read 2 more answers
A 1.0 L container holds a sample of hydrogen gas at 300 K and 101.5 k Pa. If the pressure increases to 508 k Pa and the volume r
ankoles [38]

<u>Answer:</u> The temperature will be 1501.47 K.

<u>Explanation:</u>

To calculate the temperature of the gas when pressure is increased, we use the equation given by Gay-Lussac's Law.

This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

Mathematically,

P\propto T

or,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and initial temperature of the gas.

P_2\text{ and }T_2 are the final pressure and final temperature of the gas.

We are given:

P_1=101.5kPa\\T_1=300K\\P_2=508kPa\\T_2=?K

Putting values in above equation, we get:

\frac{101.5kPa}{300K}=\frac{508kPa}{T_2}\\\\T_2=1501.47K

Hence, the temperature will be 1501.47 K

4 0
3 years ago
Where is the magnet that causes Earth’s magnetic field located? What is this magnet made of?
Lena [83]

Earth's core and the geodynamo. The Earth's magnetic field is believed to be generated by electric currents in the conductive iron alloys of its core, created by convection currents due to heat escaping from the core.

6 0
3 years ago
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