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What is the specific heat of metal if its mass is 26.86g and it requires 418.6 J of heat energy to raise its temperature from 27.4 oC to 67.3°C?

What is the unit of measurement that you express the amount of mass in?

A potassium bromide solution is 7.55% potassium bromide by mass and its density is 1.03 g/ml. part a what mass of potassium bromide is contained in 35.8 ml of the solution?

A graduated cylinder contains 167 mL of water. A 20.0-g piece of iron and a 23.0-g piece of lead are added. What is the new water level, in milliliters, in the cylinder?

Determine the scalar product of = 6.0 + 4.0 - 2.0 and = 5.0 - 6.0 - 3.0.

Do exorthermic reactions make surrounding hotter?

What's a certain indicator that a molecule is polar?

If an electron fell to a lower orbit or energy level, energy would be a. created. b. emitted. c. absorbed. d. transferred.

How many electrons are contained in an Au3 + ion? (1) 76 (3) 82 (2) 79 (4) 197

Match the element with its number of valence electrons. Column A 1. Boron : Boron 2. Carbon : Carbon 3. Fluorine : Fluorine 4. Sodium : Sodium Column B a. 4 b. 1 c. 3 d. 7