Light incident on a surface at an angle of 45° undergoes diffused reflection. At what angle will it reflect? A.
only at angles less than 45°
B.
only at angles greater than 45°
C.
only at 45°
D.
at any angle between -90° and 90°
E.
only at 0°

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?