PL HELP ME I GIVE BRAINLIEST PLZ NO FILES!!! The light is most intense where it strikes Earth to its surface.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid