What if you drop a small magnet repeatedly it become demagnetized. explain. what is happening sub-atomically?

Given that the vapor pressure of water is 17.54 torr at 20 °c, calculate the vapor-pressure lowering of aqueous solutions that are 2.20 m in (a) sucrose, c12h22o11, and (b) aluminum chloride. assume 100% dissociation for electrolytes.

Fill in the coefficients that will balance the following reaction a0h2so4 + a1koh → a2k2so4 + a3hoh

List the 4 questions to answer when you find the charge of an ion

A sealed, rigid l. 0-liter cylinder contains He gas at STP. An identical sealed cylinder contains Ne gas at STP. These two cylinders contain the same number of (1) atoms (2) electrons (3) ions (4) protons

The mass of an object is the ___. A) amount of matter it contains B) amount of space it takes up C) amount of water it displaces D) force of gravity acting on it

The pressure of a gas at 10 degrees celsius is greater that the pressure of the gas at 30 degrees celsius True False

Calculate the molar solubility of ag2so4 in each solution below. the ksp of silver sulfate is 1.5 * 10-5. (a) 0.36 m agno3: (b) 0.36 m na2so4:

Which statement best illustrates why carbon is so important to living things? a. Carbon occurs as a solid, a liquid, and a gas. b. Carbon is found in both the living and nonliving worlds. c. Carbon is stored in large quantities in fossil fuels. d.

How do astronomers explain the formation of the milky way galaxy

1 What characteristic of an element determines how its atoms can bond with other atoms?