Zora wants to dissolve a solute in a solvent quickly. Which best describes what she should do? decrease the pressure
decrease the surface area
shake it repeatedly
place in a refrigerator

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?