How many joules of heat are given off when 10 g of water cool from 100 C to 25 C?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

Complete each row of the table below by filling in the missing prefix or missing exponent.

Do polar molecules have ionic bonds?