Calculate the energy of a photon of radiation with a frequency of 8.5*10^14

What did Lorenzo Romano Amedeo Carlo Avogadro theorize in 1811?

The chemical hazard label indicates the class of hazard. It uses three major color-coded categories: Health (yellow), Flammability (red), and Instability (blue). True or False?

What is the specific heat of a piece of tin if it measures 36.0g and is heated from 18.0 degrees Celsius. It must absorb 678 j of heat to reach this temperature?

What are the molality and mole fraction of solute in a 22.3 percent by mass aqueous solution of formic acid (HCOOH) ?

Atomic radius of bromine

Why reducing power of elements increase, on moving down a group?

Which of the following is not a result of air pollution? A. Smog B. Breathing problems C. Global warming D. Soil erosion

rank the following list of aqueous solutions and solvents according to decreasing vapor pressure the substance with the higher vapor pressure should be placed at top 0.10 M glucose pure water 0.050 M urea 0.20 M sucrose

What does the p mean in 1s22s22p63s1?

Why are alkaline earth metals and alkali metals found in nature by themselves?