Sam investigates the reactivity of metals in air. His observations are shown below.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?