Determine the total mass of nh4br(s) that must be dissolved in 200. grams of h2o at 60.°c to produce a saturated solution.

Evaluate this exponential expression,8. (2 + 3)2 – 42

What is formed when amino acids form long chains or polymerize

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