Arrange these species into isoelectronic groups. It does not matter which group goes in which box, so long as the correct species are grouped?

He, Li+, Al3+, Y3+, N3-, O2-, Br-, Be2+, Sr2+

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?