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3 years ago

Easy points. Chemistry question. Put the following molecules in order, from those that require the least energy to break

Chemistry

1 answer:

ss7ja [257]3 years ago

4 0

Molecule C requires the least energy, Molecule B requires more, and Molecule A requires the most.

Explanation:
Molecule C is made up of a triple bond, which requires the most energy to break. Molecule B is made up of a double bond which is not as strong as a triple bond therefore requiring less energy. Molecule A is made up of a single bond which is the least strong thus requiring the least amount of energy.

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is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that carbonic acid can undergo when it's d

Burka [1]

Answer:

H₂CO₃ H₂O ⇄ HCO₃⁻ + H₃O⁺ Ka1

HCO₃⁻ + H₂O ⇄ CO₃⁻² + H₃O⁺ Ka2

CO₃⁻² + H₂O ⇄ HCO₃⁻ + OH⁻ Kb1

HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻ Kb2

Explanation:

Formula for carbonic acid is: H₂CO₃

It is a dyprotic acid, because it can release two protons. We can also mention that is a weak one. The equilibrums are:

H₂CO₃ H₂O ⇄ HCO₃⁻ + H₃O⁺ Ka1

HCO₃⁻ + H₂O ⇄ CO₃⁻² + H₃O⁺ Ka2

When the conjugate strong bases, carbonate and bicarbonate take a proton from water, the reactions are:

CO₃⁻² + H₂O ⇄ HCO₃⁻ + OH⁻ Kb1

HCO₃⁻ + H₂O ⇄ H₂CO₃ + OH⁻ Kb2

Notice, that bicarbonate anion can release or take a proton to/from water. This is called amphoteric,

6 0

3 years ago

Do you know the answer if so pls answer

igomit [66]

Answer:

They are both pretty soft for metals, but magnesium is significantly harder than calcium using this scale . Mg = 2.5, Ca = 1.75. The larger the number, the harder

Explanation:

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3 years ago

The modern form of the periodic table results in the _____ ,which states that when elements are

stiv31 [10]

Answer:

The periodic law states “When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties

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3 years ago

Which household items would be considered a base? Select all that apply. *

mrs_skeptik [129]

Answer:

Drain Cleaner, soap, bleach

i think thats it, sorry if i got something wrong

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3 years ago

Electric current where all of the electrons flow in one constant direction <br>

Likurg_2 [28]

An electric current that flows continuously in a single direction is called a direct current

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3 years ago