If 2.4g of magnesium burns in oxygen. calculate (i) the mass of magnesium oxide formed (ii) volume of oxygen at stp.

What stress will shift the following equilibrium system to the left? n2(g) + 3h2(g) ⇌ 2nh3(g) adding more n2(g) adding more nh3(g) increasing the pressure of the system reducing the volume of the container

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset