10 points! science
which describes an isotope?
a.
two atoms of two...
10 points! science
which describes an isotope?
a.
two atoms of two different elements that have the same atomic mass
b.
two atoms of two different elements that have the same number of neutrons
c.
two atoms of the same element that differ because they have a different number of neutrons
d.
two atoms of the same element that differ because they have a different number of protons
Answers: 3
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Which formula can be used to calculate the molar mass of hydrogen peroxide
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Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
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Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
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The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.
Answers: 3
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