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3 years ago

For species that reproduce asexually, all their offspring are

Chemistry

1 answer:

inna [77]3 years ago

8 0

Answer:

A. genetically identical

Explanation:

Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. A single individual can produce offspring asexually and large numbers of offspring can be produced quickly

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Select the correct electron configurations from the list below. You can refer to the periodic table for atomic numbers. Check al

vesna_86 [32]

What’s the list?.......

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3 years ago

What is measurement?<br>

Alexus [3.1K]

Measurement is a process of finding a number that shows the amount of something.

Brainliest? Thanks!

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3 years ago

Read 2 more answers

The Ksp of CaF2 is 4.0 x 10-11. What is the solubility of CaF2 in 0.10 M Ca(NO3)2? Give your answer using scientific notation an

Ilya [14]

Answer:

$1.0\times 10^{-5} M$ is the solubility of $CaF_2$ in 0.10 M $Ca(NO_3)_2$ .

Explanation:

Concentration of calcium nitrate = $[Ca(NO_3)_2]=0.10 M$

$Ca(NO_3)_2\rightarrow Ca^{2+}+2NO_3^{-}$

$[Ca(NO_3)_2]=0.10 M=[Ca^{2+}]$

Solubility product of the calcium fluoride = $K_{sp}=4.0\times 10^{-11}$

Solubility of calcium fluoride in calcium nitrate solution :

$CaF_2\rightleftharpoons Ca^{2+}+2F^-$

(0.10+S) (2S)

The expression of solubility is given by :

$K_{sp}=[Ca^{2+}][F^-]^2$

$4.0\times 10^{-11}=(S+0.10)(2S)^2$

Solving for S:

$S=1.0\times 10^{-5} M$

$1.0\times 10^{-5} M$ is the solubility of $CaF_2$ in 0.10 M $Ca(NO_3)_2$ .

3 0

3 years ago

At a particular temperature, the solubility of Kr in water is 0.060 M when the partial pressure is 0.90 atm. What partial pressu

elena55 [62]

At a particular temperature, the solubility of He in water is 0.060 M when the partial pressure is 0.90 atm. 2.27 atm is the partial pressure of Kr would give a solubility of 0.150 M.

<h3>What is Henry's Law ?</h3>

According to Henry's law, the weight of a gas dissolved by a liquid is proportional to the pressure of the gas onto the liquid.
With very few exceptions, a solute molecule in an extremely diluted solution will only have solvent molecules as its close neighbors. This means that the likelihood that a specific solute molecule will escape into the gas phase is predicted to be independent of the total concentration of solute molecules.

Solution:

The solubility of gas is directly proportional to partial pressure. It is expressed as:

S = $K_ h \times P _g_a_s$

where, S = Solubility of gas

$K_h$ = Henry's Law constant

$P_g_a_s$ = Partial pressure of gas

Now, put the values in above expression we get

0.060M = $K_h$ × 0.9 atm

$K_h$ = = 0.066 M/atm

Now we have to find the partial pressure of He

0.150 M = 0.066 M/atm × $P_g_a_s$

$P_g_a_s$ = 2.27 atm

Learn more about the Henry's Law : brainly.com/question/23204201

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2 years ago

Why was Niels Bohr’s atomic model superior to all the earlier models?

Elena L [17]

Answer the correct option will be option B.

Explanation: this is how he showed the electron could orbit the nucleus without falling into it. This is so because he explained that the electron revolves around the nucleus in a fixed circular orbit with fixed energy and cannot occupy just any energy level which is defined as quantisation of energy.

option A is one of postulates given by Dalton in his Dalton's atomic theory which later proved to be wrong.

option C it is one of the postulates given by the in J.J Thomson in his model of an atom which was the first atomic model.

option D Schrodinger has used the wave nature to explain the position of electrons around the nucleus.

5 0

3 years ago