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2Ca + O2 → 2CaO   How many grams of CaO are produced when 64…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
2Ca + O2 → 2CaO   How many grams of CaO are produced when 64 grams of oxygen reacts completely with calcium?
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The representative elements are also known as the __________…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
The representative elements are also known as the _______________ (A/B) group elements.   The transition metals are also known as the _______________ (A/B) group elements.   
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The farther away an energy level is from the nucleus, the __…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
The farther away an energy level is from the nucleus, the _________ the energy of an electron in that level. (lower or higher) 
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Classify each of the following as an element, compound, or m…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
Classify each of the following as an element, compound, or mixture
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Whats is the maximum number of electrons permitted in each o…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
Whats is the maximum number of electrons permitted in each of the following energy levels;   2nd energy level, ___ 5th  energy level, ___
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Which of the following element does not have one valance ele…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
Which of the following element does not have one valance electron?
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The equation N2 + 3H2 —– 2NH3 can be interpreted as follo…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
The equation N2 + 3H2 —– 2NH3 can be interpreted as follows: 1 mol of N2 reacts with 3 mol of H2 to form 2 mol of NH3. Is this statement true or false?
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The empirical formula of a compound is CH2O, and its molar m…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
The empirical formula of a compound is CH2O, and its molar mass is 90 g. What’s the molecular formula?
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Which one is the correct formula of carbon monoxide?

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
Which one is the correct formula of carbon monoxide?
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When the equation below is balanced, the coefficient of alum…

Posted on: August 27, 2025 Last updated on: August 27, 2025 Written by: Anonymous
When the equation below is balanced, the coefficient of aluminum chloride is:  AlCl3 + H2SO4 → Al2(SO4)3 + HCl
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