A zero-order reaction has a constant rate of 2.20*10-4 M/s. If after 45.0 seconds the concentration has dropped to 9.00*10-2 M, what was the initial concentration?

Mechanical energy is a term that is used to describe A. potential energy only. B. neither potential nor kinetic energy. C. both potential and kinetic energy. D. kinetic energy only. Reset Submit

A longitudinal wave causes its medium to move in what direction? O A. Perpendicular to the direction the wave travels. B. Parallel to the direction the wave travels. C. Both perpendicular and parallel to the direction the wave travels. D.

5. Sucrose is readily hydrolysed to glucose and fructose in acidic solution. The hydrolysis is often monitored by measuring the angle of rotation of plane-polarized light passing through the solution.

Over the course of two years the top layer of soil at a Michigan farm is blown away

How many moles and atoms of sodium are in the recommended daily allowance?

Why are phosphates in laundry detergent

What is the name of the scientist who discovered the electron

Which of these is not a covalent molecule? 1. F2 2. CO 3. LiF 4. NH3

Define buffer capacity. a. buffer capacity is the amount of acid or base that can be added to a buffer without destroying its effectiveness. b. buffer capacity is the amount of acid that can be added until all of the base is used up. c.

Which of the following is not a chemical reaction a) gas formation b) solid formation c) energy change d) state change