Please help. I'll give brainliest. Write a condensed structural formula for 2,2-dimethylbutane.

Compare and contrast physical changes with chemical changes.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2