Answer:
1. The kinetic energies of the particles (atoms, molecules, or ions) that make up a substance. Kinetic energy tends to keep the particles moving apart.
2. The attractive intermolecular forces between particles that tend to draw the particles together.
Answer:
Water in a freezer at -2 degrees Celsius
Ba2+ and Cu2+, and Sr2+ and Li+
Answer:
The energy transferred between samples of matter because of a difference in their temperatures is called a. heat.
Explanation:
The first law of thermodynamics establishes that when two bodies with different temperatures are put in contact they will find thermic equilibrium to a final temperature by transferring heat. Thus the correct answer is (a).
Thermochemistry is the study of the transformations of heat energy on the chemical reactions. Chemical kinetics is the study of the rate of chemical reactions. And temperature is the measure of the heat.
In order
to balance this, you have to count each element where the elements in the
reactants side and the product side should have equal number of molecules. The
balanced reaction is as follows:
2HI = H2 + I2
