Chemistry, 23.10.2019 17:00 bookerman123
An atom of beryllium (be) has 4 protons. it has a net charge of 0. how many electrons does it have? 1 2 4 8
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Why is permeable soil best for plants that need a lot of drainage?
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Chemistry, 23.06.2019 08:00
Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.
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Chemistry, 23.06.2019 13:00
Write the balanced chemical reaction for the formation of fe2(so4)3 from fe2o3 and so3 and determine how many moles of fe2(so4)3 are formed when 12.7 mol of so3 are reacted.
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Chemistry, 23.06.2019 18:20
Ahydrogen electron is elevated from level 1 to level 2. another electron is elevated from level 2 to level 4. the transition requiring the greatest energy change is?
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An atom of beryllium (be) has 4 protons. it has a net charge of 0. how many electrons does it have?...
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