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3 years ago

Which would lower the reaction rate?

Chemistry

1 answer:

saveliy_v [14]3 years ago

4 0

Answer:

Explanation: Decreasing the temperature of the system would lower the reaction rate.

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What is the relishing hip between the chemical energy provided by the battery and the electrical energy produced according to th

Novay_Z [31]

Answer:

Equal

Explanation:

Energy is always conserved in the nature and it is an universal law. According to the law conservation of energy, it is said that energy can never be created out of something and we can never destroy and vanish any energy in any form. Energy in any form can only be transformed to some other forms of energy. This is known as conversion of energy.

In the context, the chemical energy that is produced by the battery and the electrical energy produced should be equal.

7 0

3 years ago

Describe in detail what you know about the enthalpy, entropy, and free energy changes when a sample of gas condenses to a liquid

ycow [4]

The keyword here is gas condenses to a liquid, which mean we're talking about condensation process

The enthalpy energy in condensation process is negative because it releases energy
The entropy in general will also decreases .

Temperature affect this change because it will create free energy if added with this result

hope this helps

8 0

3 years ago

Read 2 more answers

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li (s) + N2 (g) → 2Li3N (s) In a particular ex

seraphim [82]

Answer: 6.71 g

Explanation: $6Li(s)+N_2(g)\rightarrow 2Li_3N$

${\text{no of moles}}=\frac{\text{Given mass}}{\text{Molar mass}}$

${\text {moles of lithium}}=\frac{4g}{6.914g/mol}=0.578moles$

$\text{moles of nitrogen}=\frac{4g}{28g/mol}=0.143moles$

Limiting reagent is the reagent which limits the formation of product. Excess reagent is one which is in excess and thus remains unreacted.

Thus lithium is the limiting reagent and nitrogen is the excess reagent.

As can be seen from the balanced chemical equation, 6 moles of lithium reacts with 1 mole of nitrogen to give 2 moles of lithium nitride.

Thus 0.578 moles of lithium react with 0.096 moles of nitrogen.

6 moles of lithium give = 2 moles of lithium nitride

Thus 0.578 moles of lithium give= $\frac{2}{6}\times {0.578}=0.19moles$ of lithium nitride.

Mass of lithium nitride $Li_3N={\text {no of moles}}\times {\text {Molecular mass}}$

Mass of lithium nitride $Li_3N$ = ${0.192moles}\times {34.83g/mol}=6.71g$

8 0

3 years ago

The noble-gas notation for tin (Sn) will contain the symbol Ar Kr Xe Rn

KIM [24]

Answer: Noble-gas notation of Sn contains Kr.

Explanation: Tin ( Sn) is an element having atomic number 50.

Nearest noble gas to this element is Krypton which has an atomic number 36.

Electronic configuration or noble-gas notation for Sn is written as :

$Sn=[Kr]4d^{10}5s^25p^2$

As seen from above, Noble gas Krypton having symbol 'Kr' is coming in the electronic configuration for Tin.

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4 years ago

Read 2 more answers

A piece of unglazed porcelain used to test a minerals streak

GrogVix [38]

This piece of porcelain is called a streak plate. This method is a method of rapid qualitative isolation and was developed by Robert Koch. It was developed to obtain pure bacterial cultures.

4 0

3 years ago