amount of time the two substances are in contact. area in contact between the two substances. specific heat of the material that makes up the substances. the density of the two substances in contact.
During this process. A. Solid turns directly into a Gas.
Cells are organized into tissues. Tissues carry out specific functions. Groups of tissues can then form organs that also have specific functions to carry out. Lastly groups of organs form organ systems that regulate many functions in a specific part of the body.
Answer:
Redox
Explanation:
Reduction is gain of electrons
oxidation is loss of electrons
A pi bond... hope this helps!!!!!