a solution in chemistry is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
The answer is (2) KNO3. This depends on the solubility of these four compounds at 10℃. For NaCl, it is 35.8 g, For NaNO3, 80.8 g. KCl, 31.2 g. KNO3, 21.9g. So only KNO3 is less than 25.0 g.
Answer:
Seven
Explanation:
The 3 means that you must multiply everything inside the parentheses by 3.
If you write the formula as AlO₃H₃, it is easier to count the atoms.
A:l 1 atom
O: 3
H: <u>3 atoms</u>
7 atoms
There are seven atoms in one formula unit of Al(OH)₃.