What happens when heavy exercise results in too much acid in the human body?

a) excess h+ is absorbed by bicarbonate ions.
b) bicarbonate releases one h+ to become carbonate.
c) h2co3 is formed from h2o and co2.
d) bicarbonate is formed from carbonate.

A) Excess H+ is absorbed by bicarbonate ions.

Explanation:

During heavy exercises we breathe faster to have more oxygen. In presence of high or sufficient amount of oxygen in our body we produce energy by breaking of pyruvate through aerobic pathway (the normal one). However in absence of required oxygen the body still can produce energy by opting the anaerobic pathway where lactate is being produced.

Thus the pH of body becomes acidic.

This excess H⁺ can be absorbed by bicarbonate ions.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

i think slash and