What volume of 0.250 M CaCl2(aq) will completely react with 50.0 mL of 0.200 M AgNO3(aq) in the reaction shown below? CaCl2(aq) + 2 AgNO3(aq) ––––> 2 AgCl(s) + Ca(NO3) 2(aq)?

Which metal exist in liquid state and can be cut with knife ?

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.

The velocity of any object depends upon a) the location of the object. b) the location of the observer. c) which measurement tools are used. d) the relative motion of the observer.