Identify the Bronsted-Lowry Acid, base, and conjugate acid-base pairs in the following reactions. H2PO4 -(aq)+ HS2O-(aq)<-> H3PO4(aq)+ SO4 2-(aq) PLEASE HELP CHEM STUDENTS. I WILL MARK BRAINLIEST

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.