Chemistry, 07.02.2021 20:00 Jenniferwolf
What can you determine about the atomic structure of an element if you know the atomic number of the element and mass number of its isotope? Enter your answer in the space provided.
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Chemistry, 22.06.2019 00:30
This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.
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Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 05:50
In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst
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Chemistry, 22.06.2019 10:00
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
Answers: 2
What can you determine about the atomic structure of an element if you know the atomic number of the...
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