Which of the following elements does NOT form a monatomic ion?

sodium

nitrogen

helium

oxygen

Which of these saturated solutions has the lowest concentration of dissolved ions? A) NaCl [aq] B) MgCl2 [aq] C) NiCl2 [aq] D) AgCl2 [aq]

1. Consider the reaction: N2 (g) + O2 (g)  2NO (g) + Cl2 (g) A reaction mixture at 400  C has the following composition: [NO] = 0.01 M, [N2] = 0.001 M, and [O2] = 0.001 M. (Kc = 0.0156 at 400  C).

which of the following pieces of equipment would be most appropriate for measuring the volume of a marble

Photons are also known as neutrinos

How are cleavage and fracture of minerals different?

Which of the following is a precipitation reaction? a. 2 LiI (aq) + Hg2 (NO3) 2 (aq) →Hg2I2 (s) + 2 LiNO3 (aq) b. NaCl (aq) + LiI (aq) → NaI (aq) + LiCl (aq) c. HCl (aq) + KOH (aq) → KCl (aq) + H2O (l) d.

How many outmost electrons do lithium and potassium have

Which of the following is a heterogeneous mixture Air Salt water Steel Soil I think it's soil but I'm not positive

When 40.5 g of Al and 212.7 g of Cl2 combine in the reaction: 2 Al (s) + 3 Cl2 (g) - -> 2 AlCl3 (s) b) How many moles of AlCl3 are formed?

Which factor does not influence the rate of a chemical reaction? A. the concentration of reactants B. the surface area of reactants C. the presence of a catalyst D. the volume of the container in which the reaction occurs