Which statements best describes a covalent bond? * Metal bonds to non-metal; electrons are given from one atom to another, forming oppositely charged ions that are attracted to each other.
Metal bonds to non-metal; a bond where electrons are shared between more than one atom.
Non-metal bonds to nonmetal; electrons are given from one atom to another, forming oppositely charged ions that are attracted to each other.
Non-metal bonds to non-metal; a bond where electrons are shared between more than one atom

Compare and contrast physical changes with chemical changes.

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Which three statements represent the benefits of performing experiments using computer simulations?