A 43.63 gram sample of a hydrate of caseo4 was heated thoroughly in a porcelain crucible, until its weight remained constant. after heating, 36.45 grams of the anhydrous compound remained. what is the formula of the hydrate?

A certain lightbulb containing argon at 1.20 atm and 18°C is heated to 85°C at constant volume. Calculate its final pressure (in atm).

Complete the passage to Distinguish between mechanical and electromagnetic waves.

What is the thermal energy of an object created by?

The total size of the container would need to be able to hold moles of gas.

Determine the empirical and molecular formulas of a compound that contains 56.36% o and 43.64% p and has a molar mass of 284 g/mo

Which of the following is an example of a molecule? F C Al O2

Organize the items listed into the proper sequence of events for gas exchange. a: O2 is transported to cells by circulatory system. b: O2 is drawn into the lungs during inhalation. c: Cells use O2 and generate CO2. d: CO2 is exhaled.

Research about the reaction of baking soda and vinegar

What mass (in mg) does 2.63 moles of nickel have? 3.56 * 105 mg 1.54 * 105 mg 2.23 * 104 mg 129 mg?

Given the propane molecule C3H8 (g) ! a) What is the balanced equation for the combustion of propane in O2? (20 pts.) b) What is the standard enthalpy change ΔH0 for the reaction at 25°C? (20 pts.