Answer:
Explanation:
During titration indicators are often used to identify chemical changes between reacting species.
For colorless solutions in which no noticeable changes can easily be seen, indicators are the best bet. Most titration processes involves a combination of acids and bases to an end point.
Indicators are substances whose color changes to signal the end of an acid-base reaction. Examples are methyl orange, methyl red, phenolphthalein, litmus, cresol red, cresol green, alizarin R3, bromothymol blue and congo red.
Most of these indicators have various colors when chemical changes occur.
Also, there are heat changes that accompanies most of these reactions. These are also indicators of chemical changes.
Answer:
radioactive noble gas is radon
which of the following is polymer
Cellulose is a linear polysaccharide polymer
nitrogen fixing bacteria is found in the root nodules of legumes
Explanation:
i hope this will help you
According to avogadro constant, the number of units in one mole of any substance contain 6.022 x10 ^23 atoms
therefore the number of o atoms in one mole of CuSO4 = 6.022 x 10 ^ 23
<span>Evaporation
is a type of vaporization of a liquid that occurs from the surface of a
liquid into a gaseous phase that is not saturated with the evaporating
substance. The other type of vaporization is boiling, which is
characterized by bubbles of saturated vapor forming in the liquid phase.</span>
Answer:
North and South pole
Explanation:
Magnets are usually made of metal. They repel and attract other metal. A magnet's force is strongest at its north and south poles. Each magnet is surrounded by lines of force and a magnetic field.