If 456 kJ of heat is absorbed to change oxygen from a solid to a liquid, how many grams of oxygen were there? AH fus=0.44 kJ/mol
AHvap=6.82 kJ/mol

What is the atomic mass of an atom that has 6 protons, 6 neutrons, and 6 electrons? a) 6 b) 8 c) + 1 d) 12 e) 18

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes