Help need asp thank you

10-A 11- I don't understand

Explanation:

I learned this stuff a few weeks ago! For 10., you have to find the number of Silicon atoms, or Si. There is only 1 Si, and there are no subscripts (little numbers after the element names) so the atoms are 1. If there is no subscript, it is 1, which means the answer is A. For the next question, I don't understand because the answers I'm coming up with are not an answer choice. Sorry for not being able to solve that one. Hope this helps!    

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?