The "hardness" of water is usually expressed as parts per million (ppm) by mass of caco3. what is the molar concentration of ca+2 ions in a water sample with a hardness count of 175 ppm?

According to the kinetic molecular theory, which of these statements is NOT true? A. There is no attraction between particles of a gas. B. Only particles of matter in the gaseous state are in constant motion. C.

Which state of matter expands when heated and is easy to compress? gas solid liquid

In what ways do the agout and the brazil nut tree depend on each other?

How many moles of Al (CN) 3 are in 251 g of the compound?

Fatty acids are carboxylic acids with a long, unbranched hydrocarbon chain. There are three main classes of fatty acids. Classify the fatty acids as saturated, monounsaturated, or polyunsaturated.

How does phosphorus enter the human body?

When a reaction occurs between atoms with ground state electron configuration 1s2 2s1 and 1s2 2s2 2p5 the predominant type of bond formed is

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide