Concept explainers
(a)
Interpretation:
Whether the hydrogen present as
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula
(b)
Interpretation:
Whether the hydrogen present as
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula
(c)
Interpretation:
Whether the hydrogen present as
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula
(d)
Interpretation:
Whether the hydrogen present as
Concept introduction:
The location of each element in the periodic table determines the formula of the hydride it forms. Alkali metals form ionic hydrides and have the formula
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CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
- The elements sodium, aluminum, and chlorine are in the same period. (a) Which has the greatest electronegativity? (b) Which of the atoms is smallest? (c) Which is the largest possible oxidation state for each of these elements? (d) Will the oxide of each element in the highest oxidation state (write its formula) be acidic, basic, or amphoteric?arrow_forwardWrite a Lewis structure for each of the following molecules and ions:(a) (CH3)3SiH(b) SiO44−(c) Si2H6(d) Si(OH)4(e) SiF62−arrow_forwardComplete and balance the following equations. Write the entire equation, including the reactants and products, and include the physical state of each species. (Click in the answer box to activate the palette.) (a) K(s) + H2O(I) → (b) NaH(s) + H20(1) –arrow_forward
- Compounds such as NaBH₄, Al(BH₄)₃, and LiAlH₄ arecomplex hydrides used as reducing agents in many syntheses.(a) Give the oxidation state of each element in these compounds.(b) Write a Lewis structure for the polyatomic anion in NaBH₄,and predict its shape.arrow_forward(a) Which poisonous gas is evolved when white phosphorus is heated with Cone. NaOH solution? Write the chemical equation. (b) Write the formula of first noble gas compound prepared by N. Bartlett. What inspired N. Bartlett to prepare this compound? (c) Fluorine is a stronger oxidising agent than chlorine. Why? (d)Write one use of chlorine gas.arrow_forwardPhosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of phosphorus(V) oxide, an acidic oxide, with water. Phosphorus(V) oxide is prepared by the combustion of phosphorus.(a) Write the empirical formula of phosphorus(V) oxide.(b) What is the molecular formula of phosphorus(V) oxide if the molar mass is about 280.(c) Write balanced equations for the production of phosphorus(V) oxide and phosphoric acid.(d) Determine the mass of phosphorus required to make 1.00 × 104 kg of phosphoric acid, assuming a yield of 98.85%.arrow_forward
- Write the Lewis structure for each of the following. You may wish to review the chapter on chemical bonding and molecular geometry.(a) PH3(b) PH4+(c) P2H4(d) PO43−(e) PF5arrow_forwardCompounds such as NaBH4, Al(BH4)3, and LiAlH4 are complex hydrides used as reducing agents in many syntheses. (a) Give the oxidation state of each element in these compounds. (b) Write a Lewis structure for the polyatomic anion in NaBH4, and predict its shape.arrow_forwardWhich of the following statements are true?(a) Both nitrogen and phosphorus can form a pentafluoridecompound.(b) Although CO is a well-known compound, SiO does notexist under ordinary conditions.(c) Cl2 is easier to oxidize than I2.(d) At room temperature, the stable form of oxygen is O2,whereas that of sulfur is S8.arrow_forward
- 7. (a) Write a complete, balanced chemical equation to show how sodium carbonate removes calcium ions and magnesium ions irom hard water.arrow_forwardComplete and balance the following equations: (a) CaO(s) + H2O(1) (b) Al>O3(s) + H*(aq) (c) NazO2(s) + H20(I) (d) N2O3(8) + H20(1) (e) KO2(s) + H,0(1) (f) NO(8) + O(8)arrow_forwardWhich of the following is NOT one of the uses of hydrogen gas? (A) Production of hydrazine (N2H4) (B) Production of ammonia (NH3) (C) Production of methanol (CH3OH) (D) Production of margarinearrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning