Answer:

IODIZED SALT IN WATER. __/___

COFFEE IN HOT WATER. ___/_____

FLOUR IN WATER. ________

JUICE POWDER IN WATER UNSTIRRED. ______

MILK POWDER IN COLD WATER. _______

ROCK SALT IN WATER. ___/___

COFFEE IN COLD WATER. _______

JUICE POWDER IN WATER BEING STIRRED. __/_____

MILK POWDER IN WARM WATER. ___/____

Explanation:

When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules.

Since boiling water is a little too hot, pouring the boiling water directly onto the coffee grounds can cause them to extract too much too early, leaving a bitter taste in your cup.

Flour does not dissolve in water as it consists of starch granules, proteins and lipids that are all insoluble in water due to their molecular structure. Instead of dissolving in water, flour will absorb water to form a sticky suspension.

When things “dissolve” they are no longer a powder. If a powder doesn’t break down in the solution, you have a “suspension”.

the powdered milk will slowly dissolve or it will be in chunks because it is not dissolving, so it is better to use hot water because this way dissolving will be faster because of the heat particles.

Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions.

Colder water will result in flat, under-extracted coffee, while water that is too hot will also cause a loss of quality in the taste of the coffee.

The juice powder will dissolve in water being stirred.

Powdered milks must be dissolved in warm or hot water.