An atom of selenium (Se) forms a monatomic ion.

Which ion does it most likely form?

A. Se 2+

B. Se 2 - <- - I believe this is correct.

C. Se 6+

D. Se 6-

Which of these measurements could be the pressure of a gas? O 725K 725 mmHg 725 grams 725 meters

What is the formula for the compound formed by lead (lV) ions and chromate ions

How many moles of silver chloride are produced from 15.0 mol of silver nitrate

How many moles of aluminum metal are required to produce 4.04 L of hydrogen gas at 1.11 atm and 27 °C by reaction with HCl? 2 Al (s) + 6 HCl (aq) → 2 AlCl3 (aq) + 3 H2 (g)

What is the constant parameters of pressure and volume? The relationship between the two? Are they directly proportional or inversely proportional?

A light-year measures the distance a light beam can travel in one year. One light-year is equal to 9 500 000 000 000 kilometers.

The first ionization energy, e, of a potassium atom is 0.696 aj. what is the wavelength of light, in nm, that is just sufficient to ionize a potassium atom? values for constants can be found here.

A gene is a to a chromosome as (A) a pea is to a pod (B) a front to a back (C) a bike is to a car (D) a building is to a window

How are you enjoying this weather? (i need good reasons}

In today's experiment, some lab students let their chromatograms elute slightly longer than others. If one student's solvent front traveled to 9.80 cm, and another student's solvent front traveled 8.