If a radius of a circle is 7 cm, what is its perimeter?
please explain in full detail...​

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false