Which statement correctly describes the difference between alcohol fermentation and lactic acid fermentation?.

Iwll give extra points to who gets this for ! what type of reaction is this? ?

What human activity increases beach erosion?

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o