The student would fill out the second row, stating that the volume increases as the temperature increases.
This phenomenon is in accordance with Charles's law, which states that for a fixed amount of gas at a constant pressure, the volume of the gas is directly proportional to the absolute temperature of the gas. All three of the gas laws are combined to form the ideal gas law.
Actually, no. While their mass may be the same (1kg), the volume of lead is a lot smaller than that of feathers. As there is the same mass stuffed in a smaller space, it must be denser. The density of water is 1 g/cm3, so if the density of the lead is more than 1g/cm3, it has to sink
Its either b or c, but i think its b
The concentration of volume of solution can be expressed in many ways for example: mass percent, volume percent, mass-by-volume percent, etc.
The formula for mass-by-volume percent is:
mass-by-volume percent = 
2% erythromycin solution means 2 g of erythromycin in 100 mL.
Consider, for 15 g the volume be X mL.
So,
Hence, the volume is 
.
