Non metal used to preserve food material

What best describes the trends in electronegativity on the periodic table

Which of the following is a radioisotope used to date rock formations older than 50,000 years? a. Carbon-14. b. Uranium-235. c. Cobalt-69. d. Carbon-12.

Support heat has convenient a speed up b change direction c eventually stop b continue at the same rate forever

This element has 2 electrons it its outermost energy level and belongs to the 3rd period

Which term refers to compounds that can form hydrates but do not contain water molecules? anhydrous dihydrates hydrolytic octahydrates

When creating a graph, why is an appropriate title for a graph important?

An atom has 25 protons, 30 neutrons and 25 electrons. what is the charge of the atom's nucleus?

Charles's law describes the relationship of the volume and temperature of gas at a constant mass and pressure. According to this law, what would happen to the volume of the gas if its temperature decreased from 400 K to 300 K? O A.

What is the lowest atom on the periodic table

Phentyfloroform contains 57.54% C, 3.45% H, and 39.01% F. What is its empirical formula?