The substance’s tendency to react with water in step 3 would be placed where on the Venn diagram?

Chemistry

2 answers:

Julli [10]4 years ago

7 0

Answer:

The correct answer is C

Explanation:

Snezhnost [94]4 years ago

4 0

Answer is: step 3 would be placed C.

This is example of chemical change (chemical reaction), because new substances are formed (gas is emitted), the atoms are rearranged.

Physical property can be observed and measured without any changes in molecular composition. The same substance is present before and after the psysical change, just with different form or state of matter.

Chemical reaction: powder + water → new substance + gas.

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3 years ago

Read 2 more answers

The decomposition of NH4HS is endothermic: NH4HS(s)⇌NH3(g)+H2S(g) Part A Which change to an equilibrium mixture of this reaction

shepuryov [24]

Explanation:

According to Le Chatelier's principle, any disturbance caused in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.

As the given reaction is as follows.

$NH_{4}HS(s) \rightleftharpoons NH_{3}(g) + H_{2}S(g)$

(a) When increase the temperature of the reactants or system then equilibrium will shift in forward direction where there is less temperature. It is possible for an endothermic reaction.

Thus, formation of $H_{2}S$ will increase.

(b) When we decrease the volume (at constant temperature) of given reaction mixture then it implies that there will be increase in pressure of the system. So, equilibrium will shift in a direction where there will be decrease in composition of gaseous phase. That is, in the backward direction reaction will shift.

Hence, formation of $H_{2}S$ will decrease with decrease in volume.