Concept explainers
Interpretation:
Most abundant element in Earth’s crust and universe as a whole has to be chosen from the given options.
Concept Introduction:
Element is a pure substance and it cannot be broken down into simpler pure substance by chemical means like
Elements that are laboratory synthesized are radioactive in nature and they convert back into the original naturally occurring element by emission of radiation. All the elements that occur naturally are not evenly distributed on earth and universe.
Radiations that are emitted from stars can be used to estimate the elemental composition of universe. This indicates that hydrogen and helium are mostly dominant. On Earth’s crust oxygen and silicon are the two elements that account for about
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General, Organic, and Biological Chemistry
- Pls answer asaparrow_forwardA volatile liquid would A. have weak attractive forces between molecules B. evaporate "slowly" at room temperature C. have a low vapor pressure at room temperature D. more than one correct response E. no correct responsearrow_forwardAttempt 1 What is the chemical formula for the compound formed between vanadium(III) and iodine? 13V chemical formula: Incorrect What is the chemical formula for the compound formed between vanadium(III) and sulfur? V2(SO4)3 chemical formula: Incorrectarrow_forward
- Problem 5: Lithium has two isotopes: lithium-6 with an atomic mass of 6.0151 amu (atomic mass unit) and lithium-7 with an atomic mass of 7.0160 amu. If the average atomic mass of lithium is 6.941 amu, calculate the natural abundances (in %) of the two isotopes. (10 points)arrow_forwardExercise 6: Write formulas for the following compounds containing polyatomic anions. a. sodium iodate b. zinc cyanate c. ammonium carbonate d. iron(III) bromate e. calcium arsenate i. ammonium nitrate j. sodium thiosulfate k. aluminum oxalate p. sodium oxalate q. calcium manganate r. potassium dichromate S. magnesium bromite t. silver chlorate u. barium selenite v. potassium acetate 1. copper(II) phosphite m. cobalt(II) thiocyanate f. potassium sulfate g. nickel(IV) acetate h. rubidium hypobromite n. mercury(I) chlorite o. aluminum perchloratearrow_forwardFree radicals are dangerous because a. they are found incorporated in any radioisotope, including those than can enter the body through the lungs as does radon b. they can be taken into the body in the food eaten if that food has been grown in radioactive soil c. they are substances that are missing some electrons and are extremely active chemically d. all of these responses are correct e. no correct responsearrow_forward
- Exercise 5: Name the following compounds containing polyatomic anions. a. NaClO3 b. Ca(ClO4)2 c. Fe(CIO2)3 d. Al(CIO)3 e. KNO3 f. (NH.)2SO4 g. (NH4)2SO3 h. (NH4)2S2O3 i. CsC,H3O2 j. CuCro4 k. ВаСОз KMnO4 m. ZnCr,07 n. Pb(BrO3)2 o. Hg (BrO2)2 р. Na:PO, q. KNO2 r. Ag.SeO4 s. Na C204 t. Au(OCN)3 u. AUSCN v. Ni3(AsO4)2 1. riousarrow_forwardPlease typed and correct answerarrow_forwardAnswer: H I answered: H because stable. H Is this why or H N: G₂- I-Z 1 G + OH answer why not? +4₂0 my # I thought that the charges. still considered +4₂0 would be more incorrect?arrow_forward
- Which of the following element-classification pairings is incorrect? a. 7Nrepresentative element b. 26Fetransition element c. 75Reinnertransition element d. no correct responsearrow_forwardName the following groups. CH₂CH₂CH₂CH₂CH₂ CH3- CH3CHCH₂ CH3 Submit Answer Retry Entire Group group group group 9 more group attempts remainingarrow_forwardExercise 3.30 - Enhanced - with Feedback Classify each of the following compounds as ionic or molecular. Drag the appropriate compounds to their respective bins. Reset Help ClO2 CO KMNO4 NI3 Pb(NO3)2 Molecular lonic Submit Previous Answers Request Answerarrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning