How is the temperature of a substance related to the speed of its atoms or molecules?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.

The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils? a) index b) body c) amber d) trace