3 years ago

What is the purpose of replication?

Chemistry

1 answer:

True [87]3 years ago

8 0

Answer:

2-to produce copies of a DNA molecule

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3 years ago

When a certain powder is mixed into a solution of silver nitrate, a white precipitate forms. When the powder is added to a solut

atroni [7]

Answer:

Ammonium chloride

Explanation:

The powder is:- Ammonium chloride

When mixed with silver nitrate, white prescipitate of silver chloride is formed as:-

$NH_4Cl+AgNO_3\rightarrow NH_4NO_3+AgCl$

When mixed with sodium hydroxide, ammonia gas is formed which has noxious order.

$NH_4Cl +NaOH\rightarrow NH_3 + H_2O + NaCl$

Ammonia gas on reaction with nickel (II) hydroxide forms deep blue colored complex as shown below:-

$Ni(OH)_2(s) + 6NH_3(aq)\rightarrow [Ni(NH_3)_6]^{2+}(aq) + 2OH^{-}(aq)$

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3 years ago

What best describes the temperature at which a solid turns into a liquid

Sunny_sXe [5.5K]

Melting point... hope this helps

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Write the ions present in solution of k2co3. express your answers as chemical formulas separated by a comma. identify all of the

GarryVolchara [31]

Answer : The ions present in the solution of $K_2CO_3$ are $K^+$ and $CO^{2-}_3$ in aqueous state.

Explanation :

When $K_2CO_3$ is in aqueous solution then they dissociates into their ions.

The reaction in aqueous medium is,

$K_2CO_3(aq)\rightarrow 2K^+(aq)+CO^{2-}_3(aq)$

The charge on potassium ion is +1 and on carbonate ion is -2. To neutralize the charge on carbonate ion, two potassium ion must be used.

Therefore, the ions present in solution of $K_2CO_3$ are $K^+$ and [tex]CO^{2-}_3[tex] in aqueous state.

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3 years ago

Read 2 more answers

Bantu donggg <br> Aku butuh banget <br> Makasih.....

mario62 [17]

3? Hope this helps :)

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3 years ago