Btw what language is that? I can translate if I know that.
A statistical measurement of the average time a
person is expected to live is a life expectancy and it depends on many factors.
<span>These days we see some improvement in life
expectancy, this is because now medical health care has been improved. Death
rates from infectious diseases have fallen and life expectancy his improved and
the second thing is a healthy life style is very important for the improvement of life expectancy.</span>
<span>
</span>
Answer:
Hydrochloric acid (HCL) is an acid, while sodium hydroxide (NaOH) is a base.
In this case the two labels are missing, one method to differentiate them is by mixing each reagent with a base. Let's say we mix sodium carbonate(Na2C03) which is a base with each of the reagent, the sodium carbonate will likely react with Hydrochloric acid which is an acid to form NaCl and H2O, but it will not react with sodium hydroxide which is a base.
Therefore, by mixing the each reagent with a base, we could help place the correct label.
Another way to place the labels correctly is, the bottle containing hydrochloric acid will be sticky while the sodium hydroxide will be slippery. It is a known fact that acids are generally sticky while bases are slippery when touched.
