Identify the compound that could undergo decomposition to produce the following products and then balance the final equation

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.