15. In a neutral atom *
1.The number of neutrons and electrons are equal.
2.The proton count...
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Chemistry, 25.02.2021 05:50 taliyahjhonson1
15. In a neutral atom *
1.The number of neutrons and electrons are equal.
2.The proton count can be different.
3.The number of protons and neutrons are equal. The electron count can be different.
4.The number of protons and electrons are equal. The neutron count can be different.
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Chemistry, 23.06.2019 07:30, jessicawelch25
In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
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