An aluminum sample has a mass of 80. 01 g and a density of 2. 70 g/cm3. According to the data, to what number of significant figures should the calculated volume of the aluminum sample be expressed?.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

What does x represent in the formula for the compound xcl4?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer