What elements would you expect to lose electrons in chemical changes? Potassium, sulfur, fluorine, barium or copper.

A substance is found to be reactive, flammable, soluble, and explosive. Which of these observations is a physical property? A. reactive B. explosive C. flammable D. soluble

32.7 grams of water vapor takes up how many liters at standard temp and pressure (273 K and 100 kPa)

295 mL of a 1.00 M ammonium chloride (NH4CI) solution is diluted with 2.25 L of water. What is the new concentration in molarity?

Iron (II) sulfide reacts with hydrochloric acid according to the reaction: FeS (s) + 2HCl (aq) →FeCl2 (s) + H2S (g) A reaction mixture initially contains 0.240 mol FeS and 0.646 mol HCl. what amount (in moles) of the excess reactant is left?

What is the mass of 1 mole of MgSO4?

What subatomic particles do the following symbols represent in the atomic diagrams

2. You have 2 m3 of a mineral ore sample. It has a mass of 1 * 104 kg. Calculate the density of the ore sample and express your results in g/cm3 with appropriate scientific notation.

A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL.

What is loamy soil?

What is the lowest possible value of n for a d atomic orbital?