Physics
Physics, 22.07.2019 12:00, asalaslex133369

Which of the following are more reactive than tin? check all that apply. a. gold b. calcium c. aluminum d. copper

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Chemistry, 21.06.2019 21:40, taysomoneyyy
During trial 2, what allowed you to determine that aluminum was the limiting reactant? check all that apply. all of the copper dissolved. all of the aluminum dissolved. the solution turned clear. the number of grams of copper(ii) chloride used in the reaction was greater than the number of grams of aluminum. the molar ratio of copper(ii) chloride to aluminum was greater than 3: 2, the equation’s molar ratio.
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Chemistry, 24.06.2019 12:30, needhelpwithHW10
Which of these best describes why copper is considered to be a more useful metal than gold? check all that apply. copper conducts electricity more readily than gold. copper reacts quickly with air and water to form a tarnish, and it corrodes more easily than gold. copper conducts heat very well; therefore, it is useful in cooking equipment. copper is more common on earth than gold. gold is much softer and easier to scratch, bend, or dent than copper.
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Chemistry, 25.06.2019 23:50, rosehayden21
What could have accounted for a percent yield of less than 100% in this lab? check all that apply. - the copper chloride did not fully dissolve in water before performing the reaction. -the mass of the copper was not measured with the same accuracy. - not all of the copper was collected in the filter. -not enough time was allowed for all of the aluminum to react. -there were impurities in the aluminum.
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Physics, 21.07.2019 14:30, garciavergaraana
Which of the following are more reactive than tin? check all that apply. a. gold b. calcium c. aluminum d. copper pick more than one it multiple answer
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