a block of ice at 0°c is added to a 150-g aluminum calorimeter cup that holds 200 g of water at 10°c. if all but 2.00 g of ice melt, what was the original mass of the block of ice?

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.

In the_ work-study program, college students who have financial needs can work part-time jobs to pay for education expenses. a stafford b university c federal d pell

Tim earns $9.20 per hour when he works at the college library how much money does he earn by working at the library for 4.5 hours