What is the charge on an atom after it gains two electrons during the formation of a bond? One negative charge
One positive charge
Two negative charges
Two positive charges

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.