A condensation polymer in which the carbon of a carbonyl group is bonded to the nitrogen of an amine group is called a(n)​

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

When using the scientist method, which step comes last?