Chemistry, 01.03.2021 22:00 smariedegray
Select the correct answer from each drop-down menu. An atom has 9 electrons and 9 protons at the start. If it loses 2 electrons, the net charge on the atom will be_. If the atom gains 4 electrons, the net charge will be_.
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Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation
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When the mercury level in a barometer decreases that atmospheric pressure has
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Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
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Select the correct answer from each drop-down menu.
An atom has 9 electrons and 9 protons at the st...
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