3 years ago

4.Which scientist described the electrons as traveling in certain orbits or energy levels?

Chemistry

1 answer:

svlad2 [7]3 years ago

5 0

Bohr is the scientist who described the electrons as traveling in certain orbits or energy levels

You might be interested in

What is the importance of a special habitat?

vfiekz [6]

They meet all the environmental conditions an organism needs to survive

8 0

2 years ago

Number of moles in 37g of magnesium

Ne4ueva [31]

Rounded its 1.522 mol

3 0

3 years ago

Calculate the solubility of ( = ) in moles per liter. Ignore any acid–base properties. s = mol/L Calculate the solubility of ( =

BaLLatris [955]

This is an incomplete question, here is a complete question.

Calculate the solubility of each of the following compounds in moles per liter. Ignore any acid-base properties.

CaCO₃, Ksp = 8.7 × 10⁻⁹

Answer : The solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

Explanation :

As we know that CaCO₃ dissociates to give $Ca^{2+}$ ion and $CO_3^{2-}$ ion.

The solubility equilibrium reaction will be:

$CaCO_3\rightleftharpoons Ca^{2+}+CO_3^{2-}$

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ca^{2+}][CO_3^{2-}]$

Let solubility of CaCO₃ be, 's'

$K_{sp}=(s)\times (s)$

$K_{sp}=s^2$

$8.7\times 10^{-9}=s^2$

$s=9.33\times 10^{-5}mol/L$

Therefore, the solubility of CaCO₃ is, $9.33\times 10^{-5}mol/L$

4 0

3 years ago

The plant chemical which absorbs sunlight and helps make cell food is

UkoKoshka [18]

Answer:

chlorophyll

Explanation:

8 0

3 years ago

what is moltarity of a solution made from dissolving 3.0 moles of saline (NaCl) in 0.25 L of solution

stiks02 [169]

It is 12 to 1 or 12/1 miles of saline to L solution

8 0

3 years ago