The equation below shows the reaction of hydrochloric acid (hcl) with sodium hydroxide (naoh). hcl (aq) + naoh (aq) → h2o (l) + nacl (aq) + heat what will happen if the temperature is decreased? a. the reaction will slow down. b. the reaction will proceed in reverse. c. the water (h2o) will begin rapidly evaporating. d. the sodium (na) and hydrogen (h) will combine to form sodium hydride (nah).

Option (C) is the correct answer.

Explanation:

Le Chatelier's principle states that when a system is in equilibrium then any change in the reaction will shift the equilibrium in a direction which is opposing the change.

So, in the given exothermic reaction when we decrease the temperature then there will be increase in production of water and NaCl.

As a result, water will evaporate at a faster rate.

Hence, we can conclude that for the given equation if the temperature is decreased then the water (H2O) will begin rapidly evaporating.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).