How much energy is needed when 1.27 moles of sulfur reacts with excess

C (s) + 25 (s) → CS2 (1)

AH = + 89.3kJ

What is weathering? A. the dropping of sediment B. the moving of sediment C. the breaking down of rock D. the building up of landforms

Which quantity represented by the symbol Ne

State what happens to atoms in a chemical reaction

Frieda makes a pyramid of oranges for a display at the grocery store. A few minutes later, Corwin bumps into the display and the oranges spill down. Which change of state does the motion of the oranges most closely model?

What is the volume of oxygen occupied by 2 moles at 1.3 atm pressure and 300 K? Use PV = nRT.

Mrs. Stark weighs 70kg. How much Potential Energy does she have if she stands on the roof of an 80m tall building?

The gravitational force of Earth is causing volcanoes on the moon. True or false?

Glucose dissolves in water but doesn't produce ions during dissolution process. Two (positive and negative) electrodes that were hooked up to a light bulb and external source of power were placed in an aqueous solution of glucose.

What is the structural difference between atp and datp?

What was henri becquerel studying when he accidentally discovered radioactivity?