Which is true of covalent compounds? a) they are crystalline solids b) they conduct electricity when melted c) they have low melting and boiling points d) they can only be found in liquids and solids, never in gases

The modern periodic table has groups.

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Name the intersection of plane bpq and plane cpq.