Number the elements sodium, magnesium, and potassium in the predicted order of ionic radius from the largest (1) to the smallest (3).

sodium

magnesium

potassium

Why is the stability of a compound considered a chemical property?

Consider the reaction: A (g) + B (g) ? C (l) In order for a reaction to be spontaneous under standard conditions, the reaction must: result in an increase of the entropy of the system this reaction could not be spontaneous under standard conditions

Anything that contains only one kind of material?

Which of the following gases are typically used for colorful lighting when an electric current is applied? A) hydrogen and helium B) argon and krypton C) fluorine and chlorine D) oxygen and nitrogen

In swimming, you apply a force to the water to move yourself forward. The greater the water pressure, the faster you can swim. This can best be explained by one of newton's laws of motion that states

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.

The nerves that Branch out from the spinal cord and connect to the body

The term southern oscillation most nearly refers to

Which kelvin temperature is equivalent to 20°C

When a piece of magnesium metal is added to hydrochloric acid, what gas is produced?