In an exothermic reaction, will increasing or decreasing the reactant cause the reaction to shift towards the product? thank you :)

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?