What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu?

(a) 65.3 amu

(b) 64.4 amu

(c) 64.9 amu

(d) 65.0 amu

(e) 64.8 amu

A fruit drink concentrate is 15% water. how many liters of pure water should be added to 12l of concentrates to produce a mixture that is 50% water

How do you think the temperatures of these two cooking appliances compare?

Physics displacement

If you have a pH of 3.35, what is the hydrogen ion concentration of the solution?

What does it mean that fermentaion is anserobic

How many grams of Tin (SN) would be required to use 6.9 moles of chlorine (cl2)

Identify the values that should be tested to see if a change occurs • x-values • y-values • h-values • z-values

The number of moles of cl - ions needed to combine completely with 0.25 moles of mg+2 ions is: 0.50 0.125 0.75 0.25

A change of state requires the addition or removal of heat energy.

A student monitored the reaction rate of a 0.600M sucrose solution, at 25 oC, and determined that the reaction is first order with respect to sucrose. If at 25.0 oC it takes 3.33-hours for the concentration of the 0.600M solution to drop to 0.300M.