The heat of vaporization of a liquid is 1340 joules per gram. What is the minimum number of joules needed to change 40.0 grams of liquids

Which statement about the waste materials from nuclear power plants is true? The waste gives off bursts of radiation over a short time. The waste produces small amounts of greenhouse gases for a long time.

What are the products in a neutralization reaction? two elements an acid and a base an element and a compound a salt and water

Why a slight change in the PH of solutions in living things could result in the death of the organism?

3. Choose the word that best defines the italicized word from the novel Frankenstein. I remembered too well the treatment I had suffered the night before from the barbarous villagers forewarned frightened misinformed uncivilized

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 258J of energy to the room?

Calculate the molar solubility of ca (io3) 2 in each solution below. the ksp of calcium iodate is7.1 * 10-7.

At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.07 m by 3.00 m by 3.77 m? Answer in units of kg.

A gas made up of atoms escapes through a pinhole 0.155 times as fast as h2 gas. write the chemical formula of the gas.

Calculate the mass percent composition of lithium in Li3PO4. A) 26.75 % B) 17.98 % C) 30.72 % D) 55.27 % E) 20.82 %

What is the golden rule of lighting safety?