Which of the following is the correct angle between the atoms in a tetrahedral molecule? a. 90o b. 109o c. 120o d. 270o

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

What is i fracture in the crust called when land move up, down or sideways