100 points!

how much heat energy is needed to convert 10.75g of ice at -22 celsius to steam at 118 celsius?

What does standard deviation reveal about data? a. the average of all the data points b. which of the data points is most reliable c. how spread out the data points are d. the percent error included in the data

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.