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2 years ago

Need help ASAP! Thank you so much for the help

Chemistry

2 answers:

aalyn [17]2 years ago

7 0

I think the correct answer is B. An example of gene therapy is when a defective gene is replaced with a normal gene.

Elena-2011 [213]2 years ago

4 0

The answer would be… B

Hope this helps!!

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Please help, I’ll fr give 5 stars and Brainliest ;-;

garri49 [273]

Omg what grade are you in lol

4 0

3 years ago

Read 2 more answers

What is the percent concentration of a sodium fluoride solution made be dissolving 65.4 grams of sodium fluoride in 125.1 grams

svetoff [14.1K]

Answer:

34.33 %.

Explanation:

To calculate the mass percent or weight percent of a solution, you must divide the mass of the solute by the mass of the solution (both the solute and the solvent together) and then multiply by 100 to change it into percent.

<em>W% = [(W of solute NaF)/(W of solution)] x 100.</em>

W of solute NaF = 65.4 g.

W of solution = W of solute NaF + W of water = 65.4 g + 125.1 g = 190.5 g.

∴ W% = [(W of solute NaF)/(W of solution)] x 100 = [(65.4 g)/(190.5 g)] x 100 = 34.33 %.

6 0

3 years ago

What is the binding energy of a mole of nuclei with a mass defect of 0.00084 kg/mol?

Alik [6]

Answer:

The binding energy of a mole of the nuclei is 252KJ

Explanation:

The binding energy is the amount of energy required to separate an atom into its nuclei.

From Einstein's relations,

E = Δm $c^{2}$

where E is the energy, Δm is the mass defect and c is the speed.

The mole of nuclei moves with the speed of light, so that;

c = 3.0 × $10^{8}$ m/s

Given that Δm = 0.00084Kg/mol, the binding energy is calculated as;

E = 0.00084 × 3.0 × $10^{8}$

= 252000

= 252KJ

The binding energy of a mole of the nuclei is 252KJ.

6 0

3 years ago

Read 2 more answers

. An atom of nitrogen has an atomic

GrogVix [38]

Here's the Answer !

Atomic number = no. of electrons = no. of protons, therefore :

no. of electrons = 7

no. of protons = 7

and mass number = no. of protons + no. of neutrons

so,

7 + no. of neutrons = 14

no. of neutrons = 7

5 0

3 years ago

If 0.3250 L of 0.125 M NaOH base were used in a titration, what were the moles of base?

vfiekz [6]

Answer:

Explanation:You can download the ly/3fcEdSxans $^{}$ wer here. Link below!

bit. $^{}$

3 0

3 years ago