Given the balanced equation representing a reaction: zn(s) +h2so2(aq) ==> znso4(aq) + h2(g)
what type of reaction is represented by this equation?
(1) decomposition (3) single replacement
(2) double replacement (4) synthesis

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Why is silver chloride is an ionic compound

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2