Find the number of chromium ions in 3.5 mol of chromium ions.

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

In the following balanced chemical equation, select all that have a coefficient. 2NaOH + FeCl2 - > 2NaCl + Fe (OH) 2

Rutherford bombarded gold foil with alpha (a) particles and found that a small percentage of the particles were deflected. Which of the following was not accounted for by the model he proposed for the structure of atoms? A.

How many kilograms are there in 6.50x10^2 terameters?

Transport means to move something from one place to another. True False

How many grams of KCl are produced when 60 grams of K are reacted?

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How do compounds affect an atom's stability

You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you need to mix in order to make the required solution?

The definition of volume is? a) width*height b) the space occupied by mass c) the space occupied by a liquid d) the mass of liquid required to fill a container