Avector is given by r = 2.15 î + 0.800 1 +3.11 k. (a) find the magnitudes of the x, y, and z components. x = y = (b) find the magnitude of r (c) find the angle between r and the x axis. find the angle between r and the y axis. find the angle between r and the z axis.

What occurs during a combustion reaction

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.