Element x is in group 2 and element y is in group 17. what happens when a compound is formed between
these two atoms?
a. x loses electrons to y to form an ionic bond.
b. x loses electrons to y to form a covalent.
c. x gains electrons from y to form an ionic bond.
d. x gains electrons from y to form a covalent bond.

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

Which statement best describes the flow of energy in this scenario

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.