The condensed structural formula for 2,2,3-trimethylbutane is ch3c(ch3)2ch(ch3)2 ch3ch2ch(ch3)c(ch3)3 ch3c(ch3)2c(ch3)3 ch3ch2(ch3)ch(ch3)2

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?