Solid silver is added to copper (ii) sulfate. does a single replacement reaction occur, and if so what is the correct chemical equation for this reaction? 2ag + cuso4 yields no reaction ag + cuso4 yields agso4 + cu ag + cuso4 yields ag2so4 + cu 2ag + cuso4 yields ag2so4 + cu

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)