What is the charge on oxygen (O) when it forms an ion?

1+

1-

2+

2-

One liter of air contains about 0.21 L of oxygen. When filled, the human lungs hold about 6.0 L of air. How much oxygen is in the lungs when they are filled with air? (Round off to the nearest hundredths place.)

What is the equilibrium constant for the following reaction? 3A + 2B 2C

What kind of pizza thooe? -. -

Relative humidity of a sealed flask of air can be changed by changing the air s temperature or by a. shining light on the flask. b. adding or removing water vapor. c. bringing the flask to a different latitude. d.

Predict where the largest jump between successive ionization energies occurs for K. between the third and fourth ionization energies between the fourth and fifth ionization energies between the first and second ionization energies between the second

An apple is placed on a scale. the scale shows that the apple weighs 1/4 a pound. this demonstrates that the apple has A: Atoms. B: Elements. C: Vitamins. D: Weight.

Identify Cobalt sulfride

If the reactants have a potential energy of 10.2 kJ/mol and the products have a potential energy of 15.7 kJ/mol, what is AH?

How to solve determine the final temperature when 450.2 grams of aluminum at 95.2°c is placed in an insulated calorimeter with 60.0 grams of water at 10.0°c?

Which of the following is true about a scientific hypothesis? A. The hypothesis must form a scientific theory. B. The hypothesis must be testable. C. The hypothesis must predict the outcome of the experiment. D.