Which rule for assigning oxidation numbers is correct?

Hydrogen is usually - 1.

Oxygen is usually - 2.

A pure group 1 element is + 1.

A monatomic ion is 0.

Scientists use this method to create plants that have higher nutritional values

Which of the following is an oxidation-reduction reaction? a. HCl (aq) + NaOH (aq) → H2O (l) + NaCl (aq) b. Cu (s) + 2AgNO3 (aq) → Cu (NO3) 2 (aq) + 2Ag (s) c. AgNO3 (aq) + HCl (aq) → AgCl (s) + HNO3 (aq) d.

For questions 22 - 24, write an equation for the reaction of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride. 22. Show the formulas of the reactants. 23. Show the formulas of the products. 24.

A gas has a volume of 590ml at a tempature of - 55.0 Celsius. What volume will the gas occupy at 30.0 Celsius? Show your work

For the reaction 3h2 (g) + n2 (g) 2nh3 (g), kc = 9.0 at 350°c. calculate g° at 350°c.

Which of the following statements describes a physical property? The substance has a higher density than water. A. The substance forms a solid when reacted with silver nitrate. B. The substance is highly reactive. C.

Using the 5M NaCI and 10% glucose stock solutions you generated, how would you prepare 100 ml of a solution that is both 150mM NaCl and 1 % glucose?

To create a tint, you would mix a hue with

What property of matter best describes the way a typical alcohol thermometer works?

A certain half-reaction has a standard reduction potential. an engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least of electrical power. the cell will operate under standard conditions.