)A rock is put in a graduated cylinder with initially contained 15.0mL of water. The level rose to 17.5 mL and the rock had a mass of 7.50g. What is the density of the rock to the correct number of significant figures?

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

In an effort to address concerns about global warming, a power plant in portland,oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?