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Concept explainers
(a)
Interpretation:
To write the formula of a compound of hydrogen with nitrogen, which is a gas at 250C and 1 atm.
Concept introduction:
In
(b)
Interpretation:
To write the formula of a compound of hydrogen with phosphorus, which is a liquid at 250C and 1 atm.
Concept introduction:
In chemical reactions, one substance is change into another substance that is there is complete chemical transformation of reactants to form products.
(c)
Interpretation:
To write the formula of a compound of hydrogen with oxygen, which contains an O-O bond.
Concept introduction:
In chemical reactions, one substance is change into another substance that is there is complete chemical transformation of reactants to form products.
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Chapter 21 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
- The atomic number of sulfur is 16. Sulfur combines withhydrogen by covalent bonding to form a compound, hydrogensulfide. Based on the number of valence electrons in a sulfuratom, predict the molecular formula of the compound.(A) HS(B) HS2(C) H2S(D) H4Sarrow_forwardWhich statement about the properties of barium chloric and mercury(II) chloride is correct? (A) BaCl₂ has a higher melting point than HgCl₂. (B) BaCl₂ has a higher solubility in nonpolar solvents than HgCl₂. (C) BaCl₂ has a higher vapor pressure than HgCl₂. (D) Molten BaCl₂ has a lower electrical conductivity than molten HgCl2.arrow_forwardName each ionic compound. In each of these compounds,the metal forms only one type of ion. (a) CsCl (b) SrBr2 (c) K2O (d) LiFarrow_forward
- The compound SiO2 does not exist as a discrete molecule while CO2 does. This is because ________. (A) CO2 is a molecular compound, whereas SiO2 is an ionic compound. (B) The SiO2 is solid while CO2 is a gas. (C) The sigma bond between Si and O atoms is very weak. (D) The Si atom does not form a stable pi-bond with the O atom.arrow_forward(a) List four physical characteristics of a solid metal. (b) List two chemical characteristics of a metallic element.arrow_forwardElements in the same group of the periodic table often formoxyanions with the same general formula. The anions arealso named in a similar fashion. Based on these observations,suggest a chemical formula or name, as appropriate, for eachof the following ions: (a) BrO4-, (b) SeO32-, (c) arsenate ion,(d) hydrogen tellurate ion.arrow_forward
- Write the empirical formula of the compound formed by (a) Al3+ and Cl - ions, (b) Al 3+ and O2 - ions, (c) Mg2+ and NO3 ions.arrow_forwardAnswer true or false. (a) The name of a binary ionic compound consists of the name of the positive ion followed by the name of the negative ion. (b) In naming binary ionic compounds, it is necessary to state the number of each ion present in the compound. (c) The formula of aluminum oxide is Al2 O3 . (d) Both copper(II) oxide and cupric oxide are acceptable names for CuO. (e) The systematic name for Fe2 O3 is iron(II) oxide. (f) The systematic name for FeCO3 is iron carbonate. (g) The systematic name for NaH2PO4 is sodium di- hydrogen phosphate. (h) The systematic name for K2HPO4 is dipotassium hydrogen phosphate. (i) The systematic name for Na2O is sodium oxide. (j) The systematic name for PCl3 is potassium chloride. (k) The formula of ammonium carbonate is NH4CO3. 39. (a) A covalent bond is formed between two atoms whose difference in electronegativity is less than 1.9. (b) If the difference in electronegativity between two atoms is zero (they have identical electronegativ- ities),…arrow_forwardWrite the formulas of the following covalent compounds. (Type your answer using the format CO2 for CO2.) (a) silicon tetrachloride(b) carbon tetrachloride(c) dinitrogen tetroxide(d) dinitrogen oxidearrow_forward
- write a balanced chemical equation for each (A) Iron (III) chloride reacts with sodium hydroxide to produce iron (III) hydroxide and sodium chloride. (B) Magnesium nitrite reacts with perchloric acid to produce magnesium perchlorate and nitrous acid. (C) Copper(II) hydroxide reacts with hydrosulfuric acid to produce copper (II) sulfide and water.arrow_forwardPredict which of these compounds are ionic and which are covalent.(A) Ca3N2(B) Li2CO3(C) PCl5(D) NaOH(E) CH4(F) MgOarrow_forwardMany chemical names are similar at first glance. Give the for-mulas of the species in each set: (a) ammonium ion and ammo-nia; (b) magnesium sulfide, magnesium sulfite, and magnesiumsulfate; (c) hydrochloric acid, chloric acid, and chlorous acid; (d) cuprous bromide and cupric bromidearrow_forward
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