10.0g of calcium carbonate was heated. The mass of calcium oxide left was 5.6g. Calculate the mass of carbon dioxide produced in the reaction.

Which of the statements applies to oxidation? A. Ketones cannot be oxidized further. B. Carboxylic acids are oxidized to ketones. C. Alcohols are oxidized to alkanes. D. Ketones are oxidized to alcohols.

How many grams of silver chromate, Ag2CrO4, are produced from 57.7 g of silver nitrate, AgNO3?

How many moles are there in a 1.80 kg bottle of water?

What is the temp difference for endo and exothermic

Which describes the Earth's inner core? A. a layer of hot rock B. a layer of rock that forms an outer skin C. a dense ball of solid metal D. a layer of molten metal

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How are electromagnetic different than all other waves

Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) accelerated through the same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67*10^{-27} kg.

A type of rock that undergoes changes because of heat and pressure

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2