Is all air pollution caused by humans

When aluminum, Al, metal is dipped in an aqueous solution of hydrochloric acid, HCl, hydrogen gas, H2, is produced with the formation of an aluminum chloride, AlCl3, solution.

The number placed in front of a formula is called a coefficient. the small number within a chemical equation formula is called a subscript. why do we adjust coefficients when balancing chemical equations and not subscripts?

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

What is the outcome of all chemical changes when two substances are combined?

Electron configuration of Mo

Which technology works in conjunction with electronic collars to enable scientists to track endangered animals?

In an experiment, having too many variables A might solve the problem faster B could solve more than one problem C will cause too many problems D will not matter

The activation energy decreases with increase in temperature. why?

What are the characteristics of Archaebacteria? A. they are single cells that have a nucleus and tend to live in extreme conditions. B. they are single cells that lack a nucleus and tend to live in extreme conditions. C.

Avogadro's number was calculated by determining the number of atoms in