Copper has a density of 8.96 g/cm? If a thin sheet of copper measures 5.5 cm by 5.5 cm and has a mass of 12.96 g, what is its thickness?

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.

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3