If you forget to dry off a bread knife and when you washed it and reddish brown spots appeared on it would that be physical or chemical change

AgC2H3O2 (aq) + SrCl2 (aq) → Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if there is no reaction.

How do decantation and filtration differ which should be faster

Which of the following characteristics is NOT true of cold fronts? A. Violent weather such as thunderstorms occur along them. B. The temperature drops as they pass. C. Clear weather usually follows them. D. They move more slowly than warm fronts.

3. Examine the chemical formulas for the Arrhenius acids in Model 1. What feature do all the Arrhenius acid chemical formulas have in common?

How much heat is needed to change 47grams of water into ice

The changing of gas to liquid

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.