When heat energy is added, two changes are observed: change a: solid changes to a liquid. change b: solid changes directly to a gas. what are the names for phase changes a and b?
a-- a is freezing and b is condensation.
b--a is freezing and b is sublimation.
c-- a is melting and b is condensation.
d--a is melting and b is sublimation.
the answer is d

Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood

Is a chemical message sent by another individual.

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.