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kirza4 [7]
3 years ago
6

Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about th

e ionization energies of these elements?
Chemistry
2 answers:
anygoal [31]3 years ago
4 0
Pericles was more of politician while Confucius has been classified by many as a philosopher. The idea that they had different positions and were from very different parts of the world made them very distinct figures. Pericles was more academic and war oriented focusing on establishing sound social and political structures. Confucius promoted the goodness in people and the service to others as a way to be spiritually free.
AnnZ [28]3 years ago
4 0
In all groups, if we come down, the ionization energy of the elements are lower than the ones above.
About the elements above, sodium has the most ionization energy,poassium and robidium come next.
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Define activation energy
love history [14]
<span>The minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
Just look up the word bud :)</span>
7 0
4 years ago
Which formula represents hydrofluoric acid?<br> HFO<br> H2F<br> HFO 4<br> HF
natulia [17]

Answer:

it's HF

Explanation:

3 0
4 years ago
Read 2 more answers
URGENT HELP NEEDED
balu736 [363]
<span>the balanced equation for the reaction is as follows
2C</span>₄H₁₀ + 13O₂ ---> 8 CO₂ + 10H₂<span>O
 stoichiometry of C</span>₄H₁₀ to O₂ <span>is 2:13
stoichiometry applies to the molar ratio of reactants and products. Avagadros law states that volume of gas is directly proportional to number of moles of gas when pressure and temperature are constant.
 Therefore volume ratio of reactants is equal to molar ratio, volume ratio of C</span>₄H₁₀ to O₂<span> is 2:13
 2 L of </span>C₄H₁₀ reacts with 13 L of O₂<span> 
then 100 L of </span>C₄H₁₀<span> reacts with 13/2 x 100 = 650 L
 therefore 650 L of O</span>₂<span> are required </span>
7 0
3 years ago
Read 2 more answers
How many atoms are present in 9.8g of H2SO4​
aleksley [76]

Answer:

Explanation:

98 gH

2

​

SO

4

​

contains1 mole of H

2

​

SO

4

​

.

1 mole of H

2

​

SO

4

​

contain=1 mole of sulphur atoms.

∴9.8 g of H

2

​

SO

4

​

contain =0.1 mol of sulphur atom.

Thus, number of sulphur-atoms =n×N

A

​

(in 9.8 g of H

2

​

SO

4

​

)

=0.1×6.023×10

23

=0.6023×10

23

.

7 0
3 years ago
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II)
Aloiza [94]

Answer:

2Li^+_{(aq)}+S^{2-}_{(aq)}+Cu^{2+}_{(aq)}+2NO_3^{-}_{(aq)}\rightarrow CuS_{(s)}+2Li^+_{(aq)}+2NO_3^{-}_{(aq)}

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

The balanced molecular equation will be,

Li_2S_{(aq)}+Cu(NO_3)_2_{(aq)}\rightarrow CuS_{(s)}+2LiNO_3_{(aq)}

The complete ionic equation in separated aqueous solution will be,

2Li^+_{(aq)}+S^{2-}_{(aq)}+Cu^{2+}_{(aq)}+2NO_3^{-}_{(aq)}\rightarrow CuS_{(s)}+2Li^+_{(aq)}+2NO_3^{-}_{(aq)}

4 0
3 years ago
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