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3 years ago

6

“If you start with a faster forward reaction, you will end up with more __________.”

1 answer:

Finger [1]3 years ago

7 0

Answer:

time to do another things !

Explanation:

Here we can not fill in the blank the words like: products, because in many cases, a slower forward reaction can give the better quantity of products.

We can not say that a faster forward reaction gives the products with better quality, because it depend on what are the reactions we mention about.

Personally, I think this is the answer for this question.

It seems that something is missing in this question.

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Calculate ΔH⁰298 (in kJ) for the process P(s) + 5/2 Cl2(g) → PCl5(g) from the following information.

Viefleur [7K]

Answer:

$\Delta H_{298}^{0}$ for the process is -375 kJ

Explanation:

Given reaction is a combination of the two given elementary steps.

Summation of change in standard enthalpy ( $\Delta H_{298}^{0}$ )of the two elementary reactions give $\Delta H_{298}^{0}$ of the reaction $P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g)$ .

$P(s)+\frac{3}{2}Cl_{2}(g)\rightarrow PCl_{3}(g)$ ...... $\Delta H_{1}=-287kJ$

$PCl_{3}(g)+Cl_{2}(g)\rightarrow PCl_{5}(g)$ ...... $\Delta H_{2}=-88kJ$

-----------------------------------------------------------------------------------------------------

$P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g)$

$\Delta H_{298}^{0}$ = $\Delta H_{1}+\Delta H_{2}=-287kJ-88kJ=-375kJ$

3 0

4 years ago

If you mix salt sand and sugar with water what will the mixture be a suspension or solution

Basile [38]

If you mix salt sand and sugar with water what will the mixture be a solution because both sugar and salt can be diluted until the saturation point

6 0

3 years ago

I'm lost....can anyone explain please?

pashok25 [27]

I'll do A for you. They are all double displacement reactions. So recall: AB+CD--> CB+AD . Also, knowing the charges will help and make this so easy.

3 0

4 years ago

ILL MARK BRAINLIEST :)

DanielleElmas [232]

Explanation:

According to the law of conservation of mass, mass can neither be created nor destroyed but it can simply be transformed from one form to another.

For example, $Na^{+} + Cl^{-} \rightarrow NaCl$

Mass of Na = 23 g/mol

Mass of Cl = 35.5 g/mol

Sum of mass of reactants = mass of Na + mass of Cl

= 23 + 35.5 g/mol

= 58.5 g/mol

Mass of product formed is as follows.

Mass of NaCl = mass of Na + mass of Cl

= (23 g/mol + 35.5) g/mol

= 58.5 g/mol

As mass reacted is equal to the amount of mass formed. This shows that mass is conserved.

As a result, law of conservation of mass is obeyed.

3 0

3 years ago

Student exploitation: electron configuration

adell [148]

E:2

M ummmmm

<em>try</em><em> </em><em>simplifying</em>

4 0

4 years ago