What is the pH of a 0.45 M solution of hydrochloric acid

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

Which of the following would not diffuse through the plasma membrane by means of simple diffusion? 1 oxygen 2 glucose 3 a steroid hormone 4 a lipid soluble vitamin

Which of the following best describes technology a. something created for only scientists to use b.the method of thinking that scientists use. c.the application of engineering to create useful products. c. a scientific idea