PLEASE HELP Experimental question: At what pH and amount of substrate would the enzyme amylase would have the most amount of product (enzyme activity)?

Whats your Hypothesis

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which chemical equation is unbalanced? which chemical equation is unbalanced

Study this image which statement best describes the rock shown check all that apply