Which of the following is true about acids? most acids are sour most acids corrode metals every acid contains hydrogen acids have a ph of greater than 7

Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.

Which one of the following research methods can show cause and effect

J. j. thomson’s experiment disproved the theory that an atom