U 2
7
How many moles of H, gas
are released when 3.85 moles of
HCl react with excess aluminum?
2A1 + 6HCI – 2AICI, + 3H2
6
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Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.