Answer:
The moles of solute
Explanation:
When you make a dilution, moles of solute does not change when you add solvent.
In concentrated solution, you have x moles of solute, that will be the same in the diluted solution.
Relation between molarity or volume of concentrated and diluted solutions is called, "dilution factor".
When you calculate the dilution factor: you use this formula
Molarity concentrated . Concentrated volume = M diluted . Diluted volume
M concentrated / M Diluted = Diluted volume / Concentrated volume
Answer:
Substance 4
Explanation:
Density is defined as mass per unit volume. A substance floats in another when its density is less than that of the substance on which it floats.
If an object is immersed in a denser liquid, it will sink
Since the density of water is 1 g/cm^3, any substance whose density is less than that of water will float in it.
If we look at the table, substance 4 has a density of 0.5g/cm^3. Hence, substance 4 is expected to float in water.
Which atom?
Atomic mass - proton
