1 point In the image below, two metals have been plotted on the same volume vs
mass graph. (Note that the line for metal B is ABOVE the line for metal A).
What is the density of metal A?
& A student graphed the following data:
mass vs volume
100
Linear Fit for: metal mass
massa)
50
Linear Fit for metal Al mass
10
15
volumelom)
O 5.56 g/cm^3
O 0.18 g/cm^3
O 8.00 g/cm3
O 0.125 g/cm^3
There is no way to tell.
k

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

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.

When the mercury level in a barometer decreases that atmospheric pressure has