A. A set of steps that help scientists gather knowledge
Answer:
In a Lewis symbol, the symbol for the element is used to represent the atom and its core electrons. Dots placed around the atom are used to indicate the valence electrons. ... In 1916, Gilbert Newton Lewis, an American chemist, suggested that molecules were formed when atoms shared pairs of outer electrons.
Explanation:
Answer:
Plastic are non reactive to chemical.
Explanation:
Most plastic is chemically inert and will not react chemically with other substances -- you can store alcohol, soap, water, acid or gasoline in a plastic container without dissolving the container itself. ... Because plastic doesn't react chemically with most other substances, it doesn't decay.
B) mid ocean ridge because a rise is a underwater mtn range located where tectonic plates are spreading apart
