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vodka [1.7K]
3 years ago
12

Simple question BUT SO MANY please help

Chemistry
1 answer:
elixir [45]3 years ago
7 0
Coal-fired plants put coal through a combustion reaction, in order to generate heat energy. While nuclear plants use principals of fission to generate power.

A combustion reaction does not split an atom, while fission is the process of breaking apart atoms, so we can conclude hat it isn’t #1.

I don’t think humans have even been able to reliably fuse atoms together, thus #2 can not be correct.

Fission is not a chemical reaction, therefore it can’t be #4.

I think both provide heat which then heats water thus turning a turbine that generates electricity. #3 is deductively the correct answer.
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Group 1 was more careful in choosing the person, whereas Group 2 might have been more careless. 
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3 years ago
15.50 g of NH4Cl reacts with an excess of AgNO3. In the reaction 35.50 g AgCl is produced. what is the theoretical yield of AgCl
Readme [11.4K]

Answer:

The answer to your question is 41.6 g of AgCl

Explanation:

Data

mass of NH₄Cl = 15.5 g

mass of AgNO₃ = excess

mass of AgCl = 35.5 g

theoretical yield = ?

Process

1.- Write the balanced chemical reaction.

              NH₄Cl  +  AgNO₃   ⇒   AgCl  +  NH₄NO₃

2.- Calculate the molar mass of NH₄Cl and AgCl

NH₄Cl = 14 + 4 + 35.5 = 53.5 g

AgCl = 108 + 35.5 = 143.5 g

3.- Calculate the theoretical yield

                 53.5 g of NH₄Cl -------------------- 143.5 g of AgCl

                  15.5 g of NH₄Cl  -------------------    x

                         x = (15.5 x 143.5) / 53.5

                         x = 2224.25 / 53.5

                         x = 41.6 g of AgCl

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3 years ago
What do cyanobacteria use to produce energy and by what process do they produce energy
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As they contain, green pigement they can perform "Photosynthesis" and obtains energy from that process

Hope this helps!
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3 years ago
What do you think happens to the bonds between atoms when substances melt?
Eduardwww [97]

Answer:

As a substance melts, and goes from a solid to a liquid state, the kinetic energy of the molecules increases, and the molecules move faster, and they separate further and further away from each other.  The intermolecluar forces holding the molecules together become weaker.  This is why a liquid can take fill the shape of its container, whereas a solid has a fixed shape.

Explanation:

take your notes man

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3 years ago
In a solution, when the suspension of one kind of molecules is blended or dissolved with another, the ________ properties are no
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Answer:

chemical

Explanation:

The chemical properties determine the identity of a substance and are not changed when there is no reaction. In the solution, what takes place is a physical change, which is a change of state (for example, going from solid to aqueous form).

8 0
4 years ago
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