Chlorine and element X have similar chemical properties. An atom of element X could have an electron configuration of

(1) 2-2 (2) 2-8-1 (3) 2-8-8 (4) 2-8-18-7

The measurement 6.4x10^3 g also could be writen as

Assume a person has defective carrier molecules for a given substance. explain what effect this would have on a person's cells

I'm an electrically neutral atomic any element, there are equal numbers of

A jar contains a certain substance. Which observation would show that the substance must be either a solid or a liquid?

How are particles in a gas like people outside of a movie theater?

Why does the body of the bird covered with feathers?

One molecule of caffeine contains 8 atoms of carbon, 10 atoms of hydrogen, 2 atoms of oxygen, 4 atoms of nitrogen. write the formula for caffeine with the elements in the order they are given.

A piece of magnesium metal is heated in the presence of chlorine gas, and a reaction takes place. What compound will most likely be produced? A. Mg2C1 B. MgCl3 C. MgCl2 D. MgCI

What is the pressure of the gas in this mercury manometer if h = 81 mm and atmospheric pressure is 749 mmHg

A microscope containing two or more lenses is an