Question 12 (1 point) The atomic number tells you how many protons are in the nucleus and how many electrons are orbiting the nucleus. To determine the number
of neutrons in the nucleus, the atomic number needs to be subtracted from the mass number.
O True
O False

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

Why do lunar and solar eclipse not happen every month