How many moles are needed make 250 mL of a 2.0M CaCl2 solution?

a.0.50 mol

b.125 mol

c.13 mol

d.500 mol

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)