How many grams of a 1000-gram radioactive sample are left after 3 half-lives? * 1 point 1000 grams 500 grams 250 grams 125 grams 2000 grams

What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart

Timed ! in which of these statements are protons, electrons, and neutrons correctly compared? quarks are present in protons and neutrons but not in electrons. quarks are present in protons, neutrons, and electrons. quarks are present in neutrons and electrons but not in protons. quarks are present in protons and electrons but not in neutrons.