Which of the following shows a chemical change occurring? (2 points) a ice hammer breaking ice © FatCamera / iStock 2018 b making noodles © Public Domain c boiling water © RyersonClark / iStock 2018 d baking bread © Claudiad / iStock 2018

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.