Why is every solution a mixture and not every mixture is a solution?

Of the elements magnesium, calcium, and barium, which will form the ion with the largest radius?

If 0.500 mol of NaN3 react what mass I'm grams of nitrogen would result

Why do bananas and sprite react chemically?

Based on its location in the periodic table, which of these is a property of nickel? A Low density B Strong semi conductor C Highly reactive with other elements D Good conductor of heat and electricity

Which of the following is an example of a chemical change? Dissolving sugar in coffee Evaporating rubbing alcohol Freezing water Rusting iron

What is the valence number of lithium?

How do buffers affect the pH of a solution? I would greatly appreciate an answer to this question.

A gas occupies 900.0 ML at temperatures of 27.0 Celsius. What is the volume at 123.0 celsius

A stock solution containing Mn2 ions was prepared by dissolving 1.584g of pure manganese metal in nitric acid and diluting to a final volume of 1.000L. The following solutions were then prepared by dilution:a. For solution A, 50.

When can a hypothesis be elevated to the status of a theory?