(b) The test-tube transfers thermal energy from the water to the stearic acid.
By what method is most of the thermal energy transferred?
Tick the correct box.
conduction
evaporation
convection
radiation

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.