A normal human body cell has a total of ___ chromosomes: ___ chromosomes come from the mother and ___ chromosomes come from the father.

What is the concentration of ammonia in a solution made by dissolving 3.75 g of ammonia in 120.0 l of water?

Is PCl3 ionic or covalent?

What does the atomic number tell you about the atom of the element

What is true of a molecule? Question 2 options: Each molecule of a compound has different properties. All molecules of a compound have the same properties. All molecules of a compound have one type of atom. Each atom of a molecule is the same.

Which phrase can accurately be placed in the middle, within both circles? a) has a ph of 7 b) dissolves metals eliminate c) ionizes in water d) turns red litmus paper blue?

Describe the attraction between 2 atoms as a result of sharing electrons

I need to know about mitosis and meiosis

What is sediment and debris, and what role does it play in the way sedimentary rock forms?

How do I convert 4,500mm to a m

A substance that permits the flow of electrons is a (n a. conductor b. insulator