The activiation energy required for a chemical reaction can be decreased by?

A) increasing the surface area of the reactant.

B) increasing the temperature of the reactant.

C) adding a catalyst to the reaction.

D) adding more reactant

Choose the appropriate volumetric device to use for each of the volume measuring applications.

In addition to carbon dioxide what is one of the products of respiration A sugar B oxygen C chlorophyll D energy

A set-back only occurs at the beginning of an exercise program cannot be overcome is normal is only the result of poor training

What is the energy of one photon of light with a wavelength of 445 nm?

What is an acid? A. A substance that increases the concentration of H + ions when dissolved B. A substance that increases the concentration of OH - ions in solution C. A substance that increases the concentration of oxygen in solution D.

9.00 g/h to kilograms per minute

Determine an empirical formula from each set of percent composition data. 1. 18.27% K, 59.30% I, 22.43% 0

What are the controlled, independent, and dependent variables of this experiment? The experiment is to drop 2 drops of food coloring in one glass of hot water, and one of cold water to see which has the faster rate of diffusion.

Aluminum foil used for storing food weighs about 0.3 g per square inch. How many atoms of aluminum are contained in one square inch of the foil?

Sulfur reacts with oxygen to form sulfur dioxide (SO2 (g), Hf = - 296.8 kJ/mol) according to the equation below. What is the enthalpy change for the reaction? Use