Chemistry, 29.04.2021 07:50 alexisolermeador389
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Which feature of a balanced chemical equation demonstrates the law of
conservation of mass?
A. It has equal numbers of each type of atom in its reactants and
products.
OB. It has a reaction arrow between the products and reactants of a
chemical reaction.
OC. It shows the coefficients and subscripts of each formula shown in
the equation.
D. It shows the chemical formula for each substance in its reactants
and products
Answers: 2
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 08:30
The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true
Answers: 1
Chemistry, 22.06.2019 19:50
If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?
Answers: 2
PLZ HELP
Which feature of a balanced chemical equation demonstrates the law of
conservation...
conservation...
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