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andreev551 [17]
3 years ago
15

When two chlorine atoms (Cl) join to form chlorine gas, Cl2, A. one chlorine atom transfers an electron to the other chlorine at

om. B. both chlorine atoms transfer an electron to the other chlorine atom. C. both chlorine atoms share an electron from the inner shell of the other. D. both chlorine atoms share an electron from the outer shell of the other.
Chemistry
1 answer:
muminat3 years ago
4 0
D. both chlorine atoms share an electron from the outer shell of the other.
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A woolly rhinocerous skeleton (Coelodonta antiquitatis) found in Poland contains 1.30% of the C-14 found in living animals. How
krok68 [10]

Answer:

The organism died 35900 years ago

Explanation:

  • Half life C-14 is 5730 years.
  • For decay of radioactive nuclides: \frac{N}{N_{0}}=(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}
  • \frac{N}{N_{0}} is the fraction of radioactive nuclide remain present after t time and t_{\frac{1}{2}} is the half-life of radioactive nuclide
  • Here \frac{N}{N_{0}} is 0.013 and t_{\frac{1}{2}} is 5730 yeras

Plug-in all the values in the above equation:

0.013=(\frac{1}{2})^{\frac{t}{5730years}}

So, t = 35900 years

Hence the organism died 35900 years ago

4 0
3 years ago
You are asked to get a compound that has a low melting point and cannot
eduard

Answer:

the third

Explanation:

8 0
3 years ago
Why was 1990 an important year regarding air quality?
Valentin [98]

Why was 1990 an important year regarding air quality? Check all that apply.

2.Cost-effective ways to reduce pollution were emphasized.


4.Modifications and improvements were made to the Clean Air Act.


i just took the test this is 100% correct

3 0
4 years ago
Read 2 more answers
What is the molarity of a solution of 0.2 moles of Potassium Oxide
egoroff_w [7]

The molarity of a solution : 0.4 M

<h3>Further explanation</h3>

Given

0.2 moles of Potassium Oxide

500 ml of water = 0.5 L

Required

The molarity

Solution

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution

\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}

Assume volume of solution = volume of water(addition of solution volume from volume Potassium Oxide is negligible

Input the value :

M = 0.2 : 0.5

M = 0.4

3 0
3 years ago
Seawater is an example of a _______ solution
My name is Ann [436]

Answer:

C. Solid in liquid

Explanation:

Seawater is an example of a solid in liquid solution.

Sea water is made up of:

  • water
  • mineral salts
  • dissolved gases

A liquid solution is always made up of a solute being dispersed within the solvent medium.

The solvent is the liquid or fluid medium.

Such solutions are homogeneous because the solute particles are distributed evenly or uniformly in the solvent.

The solute is usually present in smaller amount compared to the solvent.

3 0
3 years ago
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