Answer:
freezing, deposition, and condensation
Explanation:
Percentage
by mass is the amount in mass of a component in a mixture per 100 unit of mass of the total
mixture. Percentage by mass is the same as %w/w. In order to determine this value, we need to know the mass of the substance in question and the total mass of the sample. In this case, we have to know the mass of Fe by doing certain calculations. Then, we divide this value by the total mass given of the ore, 4.05 g and multiply by 100%. It should be expressed as follows:
Percent by mass = mass of Fe in ore / 4.05 g ore sample x 100
However, the question is lacking some information so we cannot really specify the answer.
Explanation:
molarity = no. of moles of solute/solution in litres
5.1M=no. of moles of solute/7.3
5.1×7.3=no. of moles of solute
37.2 mol =no. of moles
No, because the valance of boron is 3 and its satisfied by 3
Answer:
C
Explanation:
polar has unequal sharing of electrons that has the lone pairs which has the electronegativity difference. can be mixed with water.