Chemistry, 25.02.2021 01:00 kenziebug34
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The covalent bonds within a molecule are (very strong/weak). However it requires (more/less) energy to melt a molecular compound than an ionic compound?
This is because the attractive forces between individual molecules are (weaker/stronger) than the forces between ions in an ionic compound.
choose the correct answer in the parentheses.
Answers: 2
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Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing
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Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right
Answers: 1
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
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The covalent bonds within a molecule are (very strong/weak). However it requires (mor...
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