Aplastic rod becomes negatively charged when it is rubbed with a piece of wool. how does the rod become charged?
a. electrons move from the rod to the wool.
b. protons move from the rod to the wool.
c. electrons move from the wool to the rod.
d. protons move from the wool to the rod.

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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