19. a metal spoon was placed in a dish of ice...
19. a metal spoon was placed in a dish of ice - cream became cool. which correctly describes the heat transfer process that resulted in the cooling of the spoon? mark only one oval. conduction, because cold air currents affected the temperature of the spoon conduction, because the spoon was in contact with the cold ice - cream convection, because the spoon was in contact with the cold ice - cream convection, because cold air currents affected the temperature of the spoon 20. the type of bond that holds the atoms together in this molecule is — * mark only one oval. ch4 ionic covalent 21. the highest point on a transverse wave is called the — * mark only one oval. crest amplitude trough wavelength
Answer
# Answer:
19. Conduction, because the spoon was in contact with the cold ice cream
20. Covalent
21. crest
# Brief Explanations:
19. Conduction is heat - transfer through direct contact. The spoon and ice - cream are in direct contact.
20. In $CH_4$, carbon and hydrogen share electrons, forming covalent bonds.
21. The highest point on a transverse wave is defined as the crest.