How does an atom become a positively charged ion? A. by gaining one or more electrons B. by gaining one or more neutrons C. by losing one or more electrons D. by losing one or more neutrons

Is KBr an acid or base

In the lab, frank has two solutions that contain alcohol and is mixing them with each other. he uses 100 milliliters less of solution a than solution b. solution a is 13% alcohol and solution b is 17% alcohol.

What is the wavelength of a wave? The amount of cycles that occur in a given time the distance from the beginning to the end of a cycle The distance traveled by the wave during one full cycle The amount of time that one full cycle takes

Increased concentration generally increases the reaction rate A.) True B.) False

If the temperature of a reversible reaction in dynamic equilibrium increases, how will the equilibrium change? A. It will shift towards the products. B. It will shift towards the endothermic reaction. C. It will not change. D.

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?

What do we call the process by which cells obtain the energy that they need?

Which of the following statements describes how the periodic table is organized? 1. The elements are organized alphabetically. 2. The elements are organized by their size. 3. The elements are organized by the date they were discovered. 4.