Someone pls help me I will make you brain
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Answers: 3
Chemistry, 21.06.2019 18:00
Which is a character of nuclear fusion but not nuclear fission
Answers: 3
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 23.06.2019 00:00
Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.
Answers: 3
Chemistry, 23.06.2019 04:10
What does the field of thermodynamics relate to a-changes in nuclear reactions b- changes in energy in systems c changes in molecular structure d changes in atomic properties
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Mathematics, 05.05.2020 17:34
Chemistry, 05.05.2020 17:34
Chemistry, 05.05.2020 17:34
Mathematics, 05.05.2020 17:34
History, 05.05.2020 17:34
History, 05.05.2020 17:34
Mathematics, 05.05.2020 17:34
History, 05.05.2020 17:34
Mathematics, 05.05.2020 17:34
Mathematics, 05.05.2020 17:34