What is the hardest mineral listed here?

A. quartz B. calcite C. gypsum D. corundum

What type of change occurs when liquid water evaporates to water vaporWhat type of change occurs when liquid water evaporates to water vapor

Y/3 = 6/x. what does x equal?

The subatomic particles called blank are found in the nucleus of an atom and blank travel around them

A ball rolled down a 6 m hill in three seconds. What was the balls speed in m/s2?

Summarize facts about Chemical Change in 2-3 sentences.

A cylinder contains 4.0 g of nitrogen gas. A piston compresses the gas to half its initial volume. Afterward, by what factor has the mass density of the gas increased?

The balanced equation below represents the reaction between magnesium metal and hydrochloric acid to produce aqueous magnesium chloride and hydrogen gas. Mg (s) + 2HCl (aq) = = > MgCl2 (aq) + H2 (g) A piece of Mg (s) has a volume of 0.

What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

Think about how pressure relates to volume and how gas behavior would change in different volumes. Which of the following will have the largest positive value for Sº? A) 1 mole of helium gas at 1 atm pressure.

Does a reaction stop once it has reached equilibrium? Explain