Concept explainers
(a)
Interpretation:
To state the balanced chemical equation for the given reaction and give the name of the products so formed.
Concept introduction:
A balanced
(b)
Interpretation:
To state the balanced chemical equation for the given reaction and give the name of the products so formed.
Concept introduction:
A balanced chemical reaction equation is the one in which the number of atoms of all the elements are equal on both the sides of the chemical equation.A compound refers to a substance which contains definite proportion of two or more elements joined together through chemical bonds. A chemical formula depicts the number of atoms of each element present in a compound. It consists of symbols of each of the atoms present in the given compound as well as how many atoms of each element are present in the compound are denoted by a subscript.
(c)
Interpretation:
To state the balanced chemical equation for the given reaction and give the name of the products so formed.
Concept introduction:
A balanced chemical reaction equation is the one in which the number of atoms of all the elements are equal on both the sides of the chemical equation.A compound refers to a substance which contains definite proportion of two or more elements joined together through chemical bonds. A chemical formula depicts the number of atoms of each element present in a compound. It consists of symbols of each of the atoms present in the given compound as well as how many atoms of each element are present in the compound are denoted by a subscript.
(d)
Interpretation:
To state the balanced chemical equation for the given reaction and give the name of the products so formed.
Concept introduction:
A balanced chemical reaction equation is the one in which the number of atoms of all the elements are equal on both the sides of the chemical equation.A compound refers to a substance which contains definite proportion of two or more elements joined together through chemical bonds. A chemical formula depicts the number of atoms of each element present in a compound. It consists of symbols of each of the atoms present in the given compound as well as how many atoms of each element are present in the compound are denoted by a subscript.
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Chapter 20 Solutions
Chemistry: Principles and Reactions
- Why does the reactivity of the alkali metals decrease from cesium to lithium?arrow_forwardThe 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 balanced equation for the reaction of elemental strontium with each of the following:(a) oxygen(b) hydrogen bromide(c) hydrogen(d) phosphorus(e) waterarrow_forward
- Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one of the most common elements on earth. (b) Why are copper and lithium such important elements today?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_forwardWhich description correctly describes a difference between the chemistry of oxygen and sulfur?(a) Oxygen is a nonmetal and sulfur is a metalloid. (b) Oxy- gen can form more than four bonds, whereas sulfur cannot. (c) Sulfur has a higher electronegativity than oxygen.(d) Oxygen is better able to form p bonds than sulfur.arrow_forward
- Write a balanced equation for each of the following reactions:(a) preparation of white phosphorus from calciumphosphate, (b) hydrolysis of PBr3, (c) reduction of PBr3 toP4 in the gas phase, using H2.arrow_forwardWhich description correctly describes a difference betweenthe chemistry of oxygen and sulfur?(a) Oxygen is a nonmetal and sulfur is a metalloid. (b) Oxygencan form more than four bonds, whereas sulfur cannot.(c) Sulfur has a higher electronegativity than oxygen.(d) Oxygen is better able to form π bonds than sulfur.arrow_forwardWrite the equation for the reaction of:(a) Iron with steam(b) Calcium with water(c) Potassium with waterarrow_forward
- Write balanced chemical equations for the following reactions:(a) metallic aluminum burned in air(b) elemental aluminum heated in an atmosphere of chlorine(c) aluminum heated in hydrogen bromide gas(d) aluminum hydroxide added to a solution of nitric acidarrow_forwardQ.5(a) The alkali metals follow the noble gases in their atomic structure. What properties of these metals can be predicted from this information? (b) Arrange the carbonates of alkaline earth metals in order of thermal stability. (c) Explain the process involved in the manufacture of NaOH, Na2CO3 and NaHCO3. (d) Identify the element X in each of the following: (i) The oxide of XO2 has a high M.P., and is very abundant in nature. (ii) X forms three oxides: XO, XO2, X3O2. (iii) X forms compounds mainly in the +2 O.S., though some compounds in +4 state do exist. (iv) X occurs as several allotropes, including a molecular one. (e) Borazine reacts with three mole equivalents of HCl to give a material with chemical composition B3N3H9C13. (i) What is the structure of product? (ii) How does the isoelectronic benzene react with HCl? (f) Explain why bond length in NO (115 pm) is longer than that in nitrosonium ion (106 pm)?arrow_forward(b) Is boron a metal or a non-metal? Give reasons for your answer. (c) Why is aluminium a useful structural material even though it reacts readilywith water and oxygen? (d) What is the usual valence shown by elements of Group 13 in compounds?arrow_forward
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