Which statement correctly describes how thermal energy tends to spontaneously flow?
a.
from high temperature to low temperature
b.
from low temperature to high temperature
c.
with a decrease in kinetic energy
d.
with an increase in potential energy
e.
from cold to hot objects

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided