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3 years ago

Show proofs that the newspaper is perfectly reassembled

1 answer:

s2008m [1.1K]3 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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Both equations I and II are balanced, but equation I is the correct way to write the balanced equation.

ElenaW [278]

I don’t get the question. is there a worksheet?

5 0

3 years ago

2Fe + 6HCl -> 2FeCl3 + 3H2 If 7.0 moles of HCl is added to enough iron that the HCl is completely used up, how many

DENIUS [597]

Answer: 3.5 moles of hydrogen gas will be produced.

Explanation:

The balanced chemical equation is:

$2Fe+6HCl\rightarrow 2FeCl_3+3H_2$

As HCl gets completely used up, $HCl$ is the limiting reagent.

According to stoichiometry :

6 moles of $HCl$ produces = 3 moles of $H_2$

Thus 7.0 moles of $HCl$ produces= $\frac{3}{6}\times 7.0=3.5moles$ of $H_2$

Thus 3.5 moles of hydrogen gas will be produced.

3 0

3 years ago

Match the description with either a dehydration reaction or a hydrolysis reaction.

Gelneren [198K]

Answer:

1) Hydrolysis

2)Dehydration

3)Dehydration

4)Hydrolysis

Explanation:

Hydrolysis is the chemical breakdown of substances by water and depends on the chemistry, solubility, pH, and the oxidation–reduction (Eh or redox) potential of compound

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/hydrolysis

With hydrolysis water will be a reactant, not a product, and is associated with breaking down substances. Hence 1 and 4 being a Hydrolysis reaction.

Dehydration on the other hand, is defined as :

In a dehydration reaction, either a hydroxyl group from one molecule combines with a hydrogen atom from the other molecule, or two hydrogen atoms from one molecule combine with an oxygen atom on the other molecule. In either case, water is released, and the two molecules are joined together.

https://www.albert.io/blog/dehydration-synthesis-ap-biology-crash-course/

Therefore it is associated with creating a bond of sorts, and water is a product, which is why 2 and 3 are dehydration.

Hope this helps!

6 0

3 years ago

If you leave a cup of hot chocolate sitting on a table what eventually happens to the temperature? Does the temperature ever rea

Ksivusya [100]

Ah , a cup of hot chocolate is alot of chocolate. Im gonna drool ; )

Well , heat flows from an area of high temperature to an area of low temperature. Here , hot chocolate has the high temp , and the surrounding has a room temp. So , the heat from the hot chocolate will dissipate into the surroundings and create a thermal equilibrium. So youre right.

8 0

3 years ago

What is the condition of water in the hydrosphere right now?

SCORPION-xisa [38]

Answer:

A planet's hydrosphere can be liquid, vapor, or ice. On Earth, in the places at the north and south pole, water exists in ice or glacier form, in the atmosphere it exists in vapor form and liquid water exists on the surface in the form of oceans, lakes and rivers. It also exists below ground as groundwater, in wells and aquifers. Water collects in clouds, then falls to Earth in the form of rain or snow,

Hope it helps

:D

6 0

3 years ago