The decomposition a → b + c of a molecule a obeys the rate-law expression rate = 0.080 min-1 [a]. if the initial concentration of a is 0.30 m, what is the concentration after 2.6 minutes? 1. 0.028 m 2. 0.24 m 3. 0.38 m 4. 0.13 m 5. 0.32 m 0

Why is the sum of the coefficients on the reactant side of a balanced equation does not have to equal the sum of the coefficients on the product side of the equation?

Identical twins Kate and Karen are rowing their boat on a hot Summer afternoon when they decide to go for a swim. Kate, whose mass is 45 kilograms, jumps off the front of the boat at a speed of 3.00 m/sec. Karen jumps off the back at a speed of 4.

What causes the formation of ocean currents?

What does the theory of continental drift explain A. the breakup up of Pangaea B. the formation of the Circle of Fire C. the break up Selena Gomez and Justin Bieber D. the formation of the earth's layers

Your heart pumps 80 g of blood with each beat. The blood starts from rest and reaches a speed of 0.60 m/s in the aorta. If each beat takes 0.16 s, the average force exerted on the blood is a. 3.0" 102 N b. 0.22 N c. 0.16 N d. 0.30 N e. 0.98 N

A 1.4 kg particle moves along an x axis, being propelled by a variable force directed along that axis. Its position is given by x = 3.0 m + (4.0 m/s) t + ct2 - (1.6 m/s3) t3, with x in meters and t in seconds. The factor c is a constant. At t = 3.

One reason that life as we know it is unlikely to exist on Venus is because A. the surface temperature is too high. B. the surface temperature is too low. C. the surface has too much ice covering it. D. there is no atmosphere.

An object has a kinetic energy of 275 j and a momentum of magnitude 25.0 kg · m/s. find the (a) speed and (b) mass of the object.

with the wind a driver travels 300 mies in 5 hours. The return trip against the wind take the driver 6 hours. At what rate would thedriver travel without any wind What is the rate of thew ind?

How does sound travel from your vocal cords to someone's ear?