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Allushta [10]
3 years ago
14

Write the following elements in increasing order of atomic radius. Ca, Mg, Be, Sr

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
6 0

Answer:

In increasing order:

Sr, Ca, Mg, Br

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2 years ago
Consider the following equilibrium:
Ainat [17]

<u>Answer: </u>The equation which is wrong is K_p=K_c(RT)^{-5}

<u>Explanation:</u>

For the given reaction:

4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)

The expression for K_c\text{ and }K_p is given by:

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K_p=\frac{1}{[O_2]^3}

The concentration of solids are taken to be 1, only concentration of gases and liquid states are taken. The pressure of only gases are taken.

Relationship between K_p\text{ and }K_c is given by the expression:

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T= temperature

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\Delta n_g = number of moles of gaseous products - number of moles of gaseous reactants = 0 - 3 = -3

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K_p=K_c\times (RT)^{-3}

Therefore, the equation which is wrong is K_p=K_c(RT)^{-5}

7 0
3 years ago
True or False ... In a chemical change, a new<br> substance is formed.
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An atom in the ground state contains a total of 5 electrons 5 protons and 5 neutrons. Which Lewis electron-dot diagram represent
Luba_88 [7]
I don't know if you didn't gave a picture choice or if i didn't get the picture.
But lets call this atom A. Electron dot formula doesn't require Neutron and Protons, its main concern is valance elections.

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:A.

I hope this helped.
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