Which of the following elements is a metal?

a. Boron

c. Magnesium

b. Nitrogen

d. Carbon

How do artificial reefs positively affect the ocean system

Calculate the formula for the following hydrate composed of 76.9% CaSO3 and 23.1%H2O

Disproportionation is a process in which a substance

Summarize possible ways in which phases of matter could combine to form a solution.

What did Henry Moseley determine that contributed to understanding the atom? A. That each element has a different number of isotopes. B. That each element has a different number of protons. C. That each element has a different number of neutrons. D.

How does mass affect thermal energy transfer?

Explain whether nitrogen atoms will form bonds with other atoms.

A large sample of solid calcium sulfate is crushed into smaller pieces for testing. which two physical properties are the same for both the large sample and one of the smaller pieces?

How do i give the number of significant figures in 0.0037 mm

Which of these are ionic compounds?