Chemistry, 04.02.2020 08:02 mamaKelly2266
Which of these equations is balanced? a. 3 h2so4 + 2al → al2(so4)3 + 3h2 b. 2kcl + pb(no3)2 → kno3 + pbcl2 a b a and b neither
Answers: 2
Chemistry, 21.06.2019 23:00
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
Answers: 1
Chemistry, 23.06.2019 00:00
What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g
Answers: 1
Chemistry, 23.06.2019 03:00
In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas
Answers: 2
Which of these equations is balanced? a. 3 h2so4 + 2al → al2(so4)3 + 3h2 b. 2kcl + pb(no3)2 → kno3...
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