Acompound with formula al(xf4)3 contains (unidentified) element x, which is 11.3% by mass of the composition of the substance. what is identity of element x

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

How do forces between particles in gases compare to forces in the other states of matter? o a. the forces in gases are stronger than forces in solids but weaker than forces in liquids. o b. the forces in gases are weaker than forces in solids but stronger than forces in liquids. o c. the forces in gases are weaker than forces in solids and liquids. o d. the forces in gases are stronger than forces in solids and liquids. submit

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density