Chemistry, 16.03.2020 18:51, Dontslack

A 400g sample Iodine-131 has a half-life of 8 days. How much will be left after 40 days?

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Chemistry, 21.06.2019 20:30, Averybeam300

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

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Chemistry, 22.06.2019 13:30, suemmimonjaras8374

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

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Chemistry, 22.06.2019 16:00, yfnal3x

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

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Chemistry, 22.06.2019 19:00, QuestionsAnsweredNow

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?