Two students make a model of a tree house they want to build. the scale is 1: 44. in the scale model, the tree house has 2 windows. how many windows should the real tree house have?

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?

What happens after sound waves create vibrations in the ear?