What property of lasers causes coherent light to be emitted?

a. different intensities

c. monochromaticity

b. light amplification

d. stimulated emission

An atom that loses or gains electrons is called an A. Isotopes B. Proton C. Neutron D. Ion

What is the mass of 125 mL gaseous chlorine, density = 3.16 g/L?

When using the ideal gas law constant 0.0821, what unit is used for volume? A) Galloon B) Ounce C) Milliliter D) Liter

Light waves that cross from an air medium to a water medium will A. O be focused into a straight line. B. O lose energy and dissipate. C. change length and direction. D. O reflect off the water's surface.

Compounds have properties unlike those of their elements. a. True b. False

Define Percent transmittance

Express (3 x 104) (4 x 1023) in scientific notation

The theoretical yield of aspirin in a reaction is 721 g. What is the percent yield if 461 g is produced?

Nonmetal oxides can react with water to form acids. For example, carbon dioxide reacts with water to form carbonic acid: CO2 H2O H2CO3. (1) Write an equation to show how diiodine pentaoxide reacts with water to form an acid. Do not include states.

If atmospheric pressure suddenly changes from 1.00 atm to 0.892 atm at 298 k, how much oxygen will be released from 4.40 l of water in an unsealed container?