One mole of Oxgen molecule O2 contain how many atoms of oxgen?

A metal ion with a net + 1 charge has ten electrons in the 3d subshell. How do I identify the metal?

A preparation contains, in each milliliter, 236 mg of dibasic potassium phosphate (m. w. = 174.18) and 224 mg of monobasic potassium phosphate (m. w. = 136.09).

On the basis of the Ksp values below, what is the order of the solubility from least soluble to most soluble for these compounds? AgBr: Ksp = 5.4 x 10-13 Ag2CO3: Ksp = 8.0 x 10-12 AgCl: Ksp = 1.

A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the volume as well.

What is the meaning of Meniscus?

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.