The empirical formula for a compound is CH2. Its
molar mass is 140.1 g/mol. What is its molecular
formula?

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?

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

Astudent uses universal ph paper to find the ph of three solutions . solution a has a ph of 5 solution b has a ph of 11 and solution c has a ph of 7 identify which solution is acidic which solution is neutral and which solution is basic