What is the activation energy for this reaction?
771 KJ-373 KJ = 398 KJ

Gymnast always perform on padded mats. how does the mats protect the gymnast

What are transitions between a liquid and gas called? identify which way they are transitioning

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.