if you had a gold brick that is 2.0 cm x 3.0 cm x 4.0 cm and has a mass of 48.0 G what is its density

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

List four observations that indicate that a chemical reaction may be taking place

This drawing shows a human body system. what is the primary function of this body system?