Chemistry, 30.11.2020 21:40 rmusungu4

1.How many protons are in the nucleus of an aluminum atom? 2.How many electrons does an aluminum atom have?

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Chemistry, 22.06.2019 21:40, fatherbamboo

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

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Chemistry, 22.06.2019 23:00, lufung8627

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]

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Chemistry, 23.06.2019 09:00, ameyl

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate according to the following equation:

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Chemistry, 23.06.2019 10:20, Thejollyhellhound20

Based on the equation, how many grams of br2 are required to react completely with 29.2 grams of alcl3? alcl3 + br2 → albr3 + cl2 48.7 grams 52.6 grams 56.7 grams 61.3 grams

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1.How many protons are in the nucleus of an aluminum atom? 2.How many electrons does an aluminum ato...