Answer:
a substance that dissolves another to form a solution: Water is a solvent for sugar.
Bef2 is the compound that has the most covalent character. Whichever element has the greatest electronegativity has the least difference and most covalent character.
Answer:
B
Explanation:
The warmer the water, the more space it takes up, and the lower its density.
Answer:
Relative and average atomic mass both describe properties of an element related to its different isotopes.
Explanation:However, relative atomic mass is a standardized number that's assumed to be correct under most circumstances, while average atomic mass is only true for a specific sample.