What is PFAS? In science

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %