Which option describes energy being released as heat?

A - a Child shivering in the cold

B - Lions Sleeping after a big meal

C - A surfer on a Surfboard

D - A Baby Bird eating a Worm

Which of the following statements holds true for chemical change? A) in a chemical change, no new substance is formed B) in a chemical change, a substance changes its phase C) in a chemical change, the molecular structure of a substance changes D)

Assuming they are both at room temperature and atmospheric pressure, how does the number of molecules in 1 L of oxygen gas compare with the number of molecules in 1 L of carbon dioxide gas

How are strong acids and strong bases similar?

A 10.0cm3 volume of alcohol has a mass of 7.05g. What is the density of the alcohol in grams per cubic centimeter

Why does water work bad with oil? Explain

A piece of solid carbon dioxide, with a mass of 21.0 g, is placed in an otherwise empty 4.60 L container at 25°C. What is the pressure in the container after all the carbon dioxide vaporizes?

What is the volume of 1 mile of gas at a standard temperature and pressure

Next to each formula, write the number of atoms of each element found in one unit of the compound

A particular atom has 58 protons and 82 neutrons. what are the atomic number, mass number, and periodic table symbol of this isotope?

Chemicals that are able to reduce activation energy in a reaction and speed the reaction rate are a. inhibitors. b. reactants. c. products. d. catalysts.