Why is most of the mass of an atom is located in the nucleus?

Which defines the average kinetic energy of a systems particles? A. Density B. Pressure C. Temperature D. Volume

In an energy pyramid, which level has the most available energy?

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Molecules that resemble fats but contain phosphate functional groups are called: a. steroids. b. polypeptides. c. phospholipids. d. nucleic acid.

Calculate the amount of heat necessary to raise the temperature of 135.0 g of water from 50.4°F to 85.0°F. The specific heat of water = 4.184 J/g·°C.

How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 850 c?

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Which state of matter isn't typically found on earth?

Both black and white road surfaces absorb sunlight. the warmer road surface at the end of a sunny day is the

Which information in the periodic table indicates the number of protons in an atom? A. the position of the element in its column B. the element's chemical symbol C. the element's atomic mass D. the element's atomic number