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2 years ago

Show proofs that the newspaper is perfectly reassembled

1 answer:

s2008m [1.1K]2 years ago

4 0

Answer : The pages of the newspaper contains many pictures which are perfectly assembled as we can see that, after the experiment was done, the words, the illustrations and the pictures in the original newspaper was actually formed using the cut clippings of newspaper.

The reassembly of most of the parts in the paper was displaying a readable text on top of the newspaper, which can be considered as main indicator of newspaper being perfectly assembled.

The physical appearance of the reassembled newspaper and the original newspaper was perfect and overall the almost similar to that of of old newspaper, it gave a clear indication as the newspaper was reassembled perfectly with no mistake in it.

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The following equation shows the equilibrium in an aqueous solution of ammonia: NH3(aq)+H2O(l)⇌NH4+(aq)+OH−(aq)NH3(aq)+H2O(l)⇌NH

yarga [219]

Answer:

c) H2O and OH−

Explanation:

Acids are the species which furnish hydrogen ions in the solution or is capable of forming bonds with electron pair species as they are electron deficient species.

When an acid donates a proton, it changes into a base which is known as its conjugate base.

Bases are the species which furnish hydroxide ions in the solution or is capable of forming bonds with electron deficient species as they are electron rich species. When a base accepts a proton, it changes into a acid which is known as its conjugate acid.

The acid and the base which is only differ by absence or presence of the proton are known as acid conjugate base pair.

Thus, for the reaction,

$NH_3+H_2O\rightleftharpoons Nh_4^++OH^-$

The base is $NH_3$ and the conjugate acid of the base is $NH_4^+$ .

Also, The base is $OH^-$ and the conjugate acid of the base is $H_2O$ .

<u>Correct option is :- c) H2O and OH−</u>

8 0

3 years ago

According to the information above what is the standard enthalpy of formation for nh3

olga2289 [7]

Although the data is not stated, the standard enthalpy of formation of ammonia is -46 kJ/mol.

The standard enthalpy of formation of a substance is the change in enthalpy that occurs when one mole of that substance is produced from its elements in their standard states. The fact that the standard enthalpy of formation for ammonia is negative indicates that the formation of ammonia is an exothermic, or energy releasing, reaction.

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2 years ago

What was ernest rutherfords experiment

ohaa [14]

Answer: he shot tiny alpha particles throug a piece of gold foil.

Explanation:

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3 years ago

Which statement is true about heat transfer? *

Mrrafil [7]

Answer: A

Explanation:

heat always passes from a warmer object to a cooler object until all objects are the same temperature. Conduction is how heat travels between objects that are touching. Conduction travels fastest through solids, but liquids and gases can also conduct heat.

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3 years ago

Desclony When Fe(NO3)2 dissolves in water, what particles are present in the solution?

Hitman42 [59]

Answer:

hjfhgjgjgjghgjgjhgjhhjh

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2 years ago