When a sulfur (s) atom becomes an ion, what charge does it usually have?

What is the temperature of one mole of helium gas at stp?

Which of the following best describes technology a. something created for only scientists to use b.the method of thinking that scientists use. c.the application of engineering to create useful products. c. a scientific idea

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1