Humans have used systems of measurements for thousands and thousands of years,
True
False

If the element whose electric configuration ends in the d sublevel, the element is calssified as? a.inner transition b.noble gases c.representative d. transition

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

List four observations that indicate that a chemical reaction may be taking place