Radiation is the direct transfer of energy by .
A. Electromagnetic waves

B. Thermal radiation

C. Ultraviolet energy

Which element is least likely to undergo a chemical reaction

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.