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Read the given expression. x = number of protons β number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.
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Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
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Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.
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Chemistry, 22.06.2019 05:30
Compare and contrast physical changes with chemical changes.
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Calculate the volume of 4.4g of carbon dioxide...
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