What is an open system?

In a laboratory investigation, an HCl (aq) solution with a pH value of 2 is used to determine the molarity of a KOH (aq) solution. A 7.5-milliliter sample of the KOH (aq) is exactly neutralized by 15.0 milliliters of the 0.010 M HCl (aq).

A steel pin has a mass of 5.2 grams and a volume of 0.65 cubic centimeters. Calculate its density

A 38.4-g sample of ethylene glycol, a car radiator coolant, loses 852 J of heat. What was the initial temperature of the ethylene glycol if the final temperature is 32.5°C? (c of ethylene glycol = 2.42 J/g·K)

Explain the difference between passive transport and active transport

A 22.4 liter sample of gas at stp weighs 12.0 grams. What is the molecular weight of the gas

How many grams of As2S3 are in 3.25 moles?

How does a solid turn into a liquid

What does the Ka represent in the equation and why is it important?

Is an american alligator a autotroph?

A/1 * B/C = D, You find yourself with 17 guilders (a gold coin) but you are planning on taking a trip to a country where the local currency is the florin. The current exchange rate is 2 guilders for every 3 florins.