Chemistry, 02.08.2019 08:00 cheychey021203
"when elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties" is a statement of mendeleev's law the pauli exclusion principle hund's rule periodic law
Answers: 2
Chemistry, 22.06.2019 03:30
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?
Answers: 3
Chemistry, 22.06.2019 12:00
In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?
Answers: 1
Chemistry, 23.06.2019 01:30
What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water
Answers: 1
"when elements are arranged in order of increasing atomic number, there is a periodic repetition of...
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