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Goshia [24]
3 years ago
6

Choose the atom that has the smallest atomic radius. Rb Na K Li

Chemistry
2 answers:
vesna_86 [32]3 years ago
8 0
The answer is Rb.....................................
sdas [7]3 years ago
6 0

Answer: Option (d) is the correct answer.

Explanation:

The given elements are Rb, Na, K and Li and all these elements are group 1 elements.

These are also known as alkali metals. These elements are placed in the order from top to bottom as Li, Na, K, Rb.

It is known that when we move down a group then there is increase in the size of atom. As a result, atomic radius also increases.

Thus, atom at the top which is lithium (Li) will have the smallest atomic radius.


                       

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Advocard [28]

Answer:

C The water had adequate nitrogen and phosphorus, so it is likely iron limited.

Explanation:

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They require nitrogen, phosphorus and trace amount of iron to survive.

From the scientist's results after testing the water for nitrogen and phosphorus,there are reasonable amount of these elements.

Therefore insufficient iron in the water is the reason why he could find plenty phytoplankton in the ocean.

8 0
3 years ago
1.72 moles of NOCI were placed in a 2.50 L reaction chamber
elena-14-01-66 [18.8K]

The equilibrium constant, Kc=0.026

<h3>Further explanation</h3>

Given

1.72 moles of NOCI

1.16 moles of NOCI  remained

2.50 L reaction chamber

Reaction

2NOCI(g) = 2NO(g) + Cl2(g).

Required

the equilibrium constant, Kc

Solution

ICE method

   2NOCI(g) = 2NO(g) + Cl2(g).

I    1.72

C   0.56           0.56         0.28

E   1.16              0.56         0.28

Molarity at equilibrium :

NOCl :

\tt \dfrac{1.16}{2.5}=0.464

NO :

\tt \dfrac{0.56}{2.5}=0.224

Cl2 :

\tt \dfrac{0.28}{2.5}=0.112

\tt Kc=\dfrac{[NO]^2[Cl_2]}{[NOCl]^2}\\\\Kc=\dfrac{0.224^2\times 0.112}{0.464^2}=0.026

4 0
3 years ago
How is the scientific definition of "heat" different from how we use it every day? PLEASE NEED THE ANSWER ASAP
klio [65]
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3 years ago
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barxatty [35]

Answer:

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Explanation:

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Anton [14]

Answer:

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Explanation:

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6 0
3 years ago
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