What is the specific heat of a substance that absorbs 3500 joules of heat when a sample of 150 g of the substance increases in temperature from 15 °C to 70°C?

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?