While Karen was cooking dinner, she noticed that several ingredients went through chemical and physical changes. Which cooking process is an example of a physical change? A. Boiling soup
B. Frying eggs
C. Baking cookies
D. Toasting bread

Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to form water and sodium sulfate. include phases.

To calculate the molarity of a solution, you need to know the moles of solute and the

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?