In the chemical formula for ammonia, NH3, what does the subscript 3 represent?

What is the electron configuration of an isolated s atom?

In order to study hydrogen halide decomposition, a researcher fills an evacuated 1.11 L flask with 0.822 mol of HI gas and allows the reaction to proceed at 428°C: 2HI (g) ⇋ H2 (g) + I2 (g) At equilibrium, the concentration of HI = 0.055 M.

The safe dosage of the IV antibiotic ceftriaxone for children weighing more than 2.0 kg is 60. mg per kilogram of body weight. Suppose a pediatric nurse has available 1.5 L of a ceftriaxone solution with a concentration of 0.030 g/mL.

What is the equilibrium constant for the reaction of AgCl (s) with concentrated HCN? The Ksp of AgCl is 1.8 * 10-10 and the Kf of Ag (CN) 2 - is 1.0 * 1021.

What is the molar mass of K2SO3

2. You have 2 m3 of a mineral ore sample. It has a mass of 1 * 104 kg. Calculate the density of the ore sample and express your results in g/cm3 with appropriate scientific notation.

A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL.

What is loamy soil?

What is the lowest possible value of n for a d atomic orbital?

List the following bonds in order of increasing ionic character: CsF, ClCl, BrCl, SiC