How many atoms in 54.0 g of aluminum

What is "the international system of units"?

The shape and surface texture of aggregate particles is important for both Portland cement concrete (PCC) and hot mix asphalt (HMA). For preparing PCC, would you prefer round and smooth aggregate or rough and angular aggregate?

Based on the data gathered in Millikan's oil-drop experiments, the concept of atomic structure was modified. Which of the following aspects of the structure of the atom was validated by these experiments?1. mass of the atom2. mass of an electron3.

Describe the orbital diagram of an atom with 16 electrons. Explain how this orbital diagram demonstrates Hund's rule.

What is the state of nitrogen balance when a person ingests 13 g of food nitrogen and loses 21 g of nitrogen?

How is geothermal produced

B2O3 (s) + 3C (s) + 3Cl2 (g) - - - > 2 BCl3 (g) + 3CO (g) Calculate how many moles of BCl3 are produced from the reaction of 61.0g of B203? A. 1.75 mol B. 0.0150 mol C. 51.3 mol D. 211 mol

A gas has a volume of 10 L at 0 C what is the final temperature of the gas if it volume increases to 25L

Are specimens the best source of DNA

Given the solubility, calculate the solubility product constant (ksp) of each salt at 25°c: (a) ag2so3, s = 4.6 * 10-3 g/l; (b) hg2i2, s = 1.5 * 10-7 g/l; (c) zn3 (po4) 2, s = 5.9 * 10-5 g/l.