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3 years ago

Rank from most to fewest valance electrons

1 answer:

5 0

The question is not clear. Do you mean what's the maximum amount of valence electrons a shell could hold? If that's what you meant then the first shell can hold 2, the second can hold 6, the third can hold 8. If you're in University then the answer would be different however.

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Someone help answer this

alexandr402 [8]

it is water energy :) this is easy

6 0

3 years ago

Read 2 more answers

This is the term for the weather patterns that an area experiences over a long period of time? A) climate. B) weather. C) availa

Rufina [12.5K]

The correct option is A.
Climate refers to the long time pattern of weather condition in a particular area. Climate is measured by assessing the patterns of variation in temperature, relative humidity, wind, atmospheric pressure, precipitation and other meteorological variables in a given area over a long period of time.<span />

7 0

3 years ago

25.0 mL of an HBr solution were titrated with 29.15 mL of a 0.205 M LiOH solution to reach the equivalence point. What is the mo

trapecia [35]

The molarity of HBr solution is 0.239 M

calculation

write the equation for reaction

that is LiOH +HBr → LiBr +H20

find the moles of LiOH used

moles =molarity x volume

=0.205 x 29.15 = 5.976 moles

by use of mole ratio between LiOH :HBr which is 1:1 the moles of HBr is therefore= 5.976 moles

Molarity of HCL= moles /volume

= 5.976/25 = 0.239 M

7 0

3 years ago

Study of gene structure and function

gregori [183]

I believe the answer would be b

7 0

3 years ago

Match the following associations. 1. + ΔHexothermic endothermic 2. E2 < E¹exothermic endothermic 3. energy is absorbed exothe

Alisiya [41]

Explanation:

When heat is absorbed by reactants in a chemical reaction then the reaction is known as endothermic reaction.

Whereas when heat is released by reactants in a chemical reaction then the reaction is known as exothermic reaction.

1. When $\Delta H$ is positive then it means heat is absorbed by reactants and reaction is endothermic.

2. When $E_{2} < E_{1}$ , this means energy of products is less than the energy of reactants. Therefore, it is exothermic in nature.

3. When energy is absorbed then reaction is endothermic.

4. When $E_{2} > E_{1}$ , this means energy of products is greater than the energy of reactants. Therefore, it is endothermic in nature.

5. When [tex]\Delta H is negative then it means heat is released by reactants and reaction is exothermic.

4 0

3 years ago