If 75 grams of Pb(NO3)2 is dissolved in 100 grams of water at 40 degrees c, what would happen to the sample if the temp was dropped to 10 degrees c. Support your answer with a calculation. Help ASAP!

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.