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Why are the elements found in the I=P x A x T important in terms of them having an impact to our environment?
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- Compound A has molecular formula C7H7X. Its 1H-NMR spectrum shows a singlet at 2.25 ppm and two doublets, one at 7.28 ppm and one at 7.39 ppm. The singlet has an integral of three and the doublets each have an integral of two. The mass spectrum of A shows a peak at m/z = 126 and another peak at m/z = 128; the relative height of the two peaks is 3:1 respectively. Identify what atom X is, explaining your reasoning and identify Compound A, explaining your reasoning.In which of the following pairs is the first element expected to have a higher electronegativity than the second? (1 Point) O O, P O Cs, Rb O I, Br Al, PThe six elements that make up biomolecules aren't the six most prevalent elements on Earth. What are these 6 elements and discuss why the biomolecules' abundance isn't a factor to consider. What characteristics do these elements possess that enable them to better perform their responsibilities in the production of life-sustaining molecules?
- Fill out Table 1 above by writing “+” if the compound tested positive for the chemical reaction. Otherwise, write “-“Consider these compounds: A. PbBr, B. MnS C. Ag,CO3 D. AIPO, Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that magnesium fluoride is more soluble than and magnesium fluoride is less soluble than| It is not possible to determine whether magnesium fluoride is more or less soluble than by simply comparing Kgp values.Another major use of bismuth has been as an ingredient in low-melting metal alloys, such as those used in firesprinkler systems and in typesetting. The element itself is a brittle white crystalline solid. How do these characteristicsfit with the fact that bismuth is in the same periodic group with such nonmetallic elements as nitrogenand phosphorus?
- Atoms A and B interact to form a compound, AB2. When measured, atom A has a partial negative charge and atom B has a partial positive charge. From this information, we can conclude what? Select only ONE answer choice. Note: - means "approximately equal to" , A > B means "A is greater than B" , and A B: AB2 is hydrophilic Not enough information to answer the questionWhat are Alu elements? How can they adversely affect human health?What three things constitute the ocean (Hint: one of them is water)? Why is this fact important? How do sodium atoms and chlorine atoms combine to make the salt in the ocean?
