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3 years ago

Please draw the resonance structure for this compound indicating formal charges and lone pairs

Chemistry

1 answer:

ikadub [295]3 years ago

8 0

Here are the resonance contributors I found.

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Calculate the boiling temperature of a 0.50 M solution of sucrose. Assume that the concentration is 0.50 m.

Ronch [10]

There is one missing point in the question.

The formula to find an increase in boiling Temperature is :

ΔT = kb x M

ΔT = is the increase in boiling Temperature
Kb = Boiling point constant of the Solvent
M = Molarity

You did not provide the Kb. If you have it, you just have to insert it to the formula to find the ΔT.

And assuming that the other solution is water, you just have to add it up with 100 Celcius

5 0

3 years ago

...hheeelppppp plzzz??

TEA [102]

Answer:

Explanation:

n-factor of NaOH = 1

OH⁻ concentration = Normality of NaOH

= Molarity x n-factor

= 10⁻⁵ x 1

= 10⁻⁵

Now, pOH = -㏒(OH⁻)

pOH = -㏒(10⁻⁵)

pOH = 5

We know pH + pOH = 14

pH = 14 - 5 = 9

∴pH of 10⁻⁵M NaOH is 9

5 0

3 years ago

2, classify the following molecules as polar or non polar.

Vitek1552 [10]

A. CH4= NON POLAR

B. CH3cl= POLAR

C. CO2= NON POLAR

D. H2O2= POLAR

E. BCl3= NON POLAR

F. H2S= SLIGHTLY POLAR

7 0

3 years ago

Write the net ionic equation for ammonium carbonate and lead(II) nitrate are combined. (Use the solubility rules provided in the

sashaice [31]

Answer: The net ionic equation is written below.

Explanation:

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of ammonium carbonate and lead (II) nitrate is given as:

$(NH_4)_2CO_3(aq.)+Pb(NO_3)_2(aq.)\rightarrow 2NH_4NO_3(aq.)+PbCO_3(s)$

Ionic form of the above equation follows:

$2NH_4^{+}(aq.)+CO_3^{2-}(aq.)+Pb^{2+}(aq.)+2NO_3^{-}(aq.)\rightarrow PbCO_3(s)+2NH_4^+(aq.)+2NO_3^-(aq.)$

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

$Pb^{2+}(aq.)+CO_3^{2-}(aq.)\rightarrow PbCO_3(s)$

Hence, the net ionic equation is written above.

8 0

3 years ago

Moving glaciers can cause erosion ? True or false Plz explain

sertanlavr [38]

Glaciers cause erosion in two main ways: plucking and abrasion. Plucking is caused when sediments are picked up by a glacier. They freeze to the bottom of the glacier and are carried away by the flowing ice. ... The rocks and sediment grind away as the glacier moves

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3 years ago

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