Need Help ASAP!! The type of bond in Calcium fluoride, CaF2, is a(n):

A) covalent bond
B) ionic bond
C) hydrogen bond
D) metallic bond

How many miles of calcium oxide will be produced when 1.6 miles of iron (iii) oxide react with calcium phosphate

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons