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Chemistry, 22.06.2019 01:30
When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)
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Chemistry, 22.06.2019 02:10
Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %
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Chemistry, 22.06.2019 03:30
The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.
Answers: 2
Chemistry, 22.06.2019 04:30
This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?
Answers: 1
An amount charcoal is burned to produce 4.2x106 cal energy. What mass of water can be heated from 25...
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