Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below. ­­2NaClO3­ --> 2NaCl +3O2

How many moles of NaCl were produced by 9 moles of NaClO3­? Round your answer to the nearest whole number.

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.