How many atoms are in 0.44 mol of zinc metal

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Can someone me with this? i’m not sure what to put for my equations.

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.