Understand how to name alkanes and write their formulas question when numbering the parent chain for an alkane with only alkyl or halogen substituents, we will number so as to give: select the correct answer below: o the heaviest substituent occurring soonest o the lightest substituent occurring soonest o any substituent occurring soonest o the chain is always numbered left to right ! feedback more instruction submit content attribution

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Which of these is a physical property

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.