5kg of water (cp = 1 j/kgoc) is pumped to a height of 0.5 m, work done by the motor is 50 j/kg, and heat liberated by it is 5 j/kg, what is the final temperature of the water if the initial temperature was 0 c?
a) 4 c
b) 6 c
c) 2 c
d) 8 c

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?