Chemistry, 27.06.2019 22:30 manuell090203
1.) the atomic number of an element is 11. based on its electron arrangement, which of the following explains its correct position in the periodic table? a. group 1, because it has a single electron in the 4s orbital. b. group 3, because it has a single electron in the 3p orbital. c. group 1, because its outermost electron is in the 3s orbital. d. group 3, because its outermost electron is in the 4p orbital.
Answers: 2
Chemistry, 21.06.2019 22:20
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) โ ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 ยฐc?
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Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
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Chemistry, 22.06.2019 08:30
If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?
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1.) the atomic number of an element is 11. based on its electron arrangement, which of the following...
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