1. Salt was added to water and stirred until it completely dissolved. Which statement accurately describes what happened to the salt? *
A The salt disappeared
B The amount of salt decreased
C The salt evaporated.
D The salt molecules were evenly distributed in the water

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

What is the relationship of air masses and the temperature of oceans?

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils