Convert each given quantity in scientific notation to mass in grams expressed in scientific notation. a. 3.45 × 10^2 mol Co b. 2.45 × 10^-2 mol Zn

What type of electromagnetic radiation has a shorter wavelength than blue light

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?

1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency