Is it a gold ring? A friend shows you a gift she has received and says it is a gold ring! In the laboratory, you find its mass to be 70.25 g and its volume to be 3.64 cm^3. Is her new ring pure gold? Why or why not? The density of pure gold is 19.3 g/cm^3. d=m/v

If 10.0 ml of the solution on the right are withdrawn from the 100 ml beaker and diluted again in a similar manner, what is the new concentration? m nacl

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.