Concept explainers
Interpretation: The option among the following that is not a property of sodium is to be stated.
Concept introduction: Sodium is an alkali metal and belongs to group
Sodium is very reactive and forms compounds with chlorides, oxides and water. Sodium combines with non-metals and there is a transfer of electrons from sodium to non-metals and thus ions are formed where sodium has a positive charge and non-metals are negatively charged. Thus, it generally forms ionic compounds and reacts vigorously to produce compounds with non-metals. The appearance, texture and colour of any element can be determined by looking at the substance.
The reaction of sodium metal with non-metal produces energy which is released in the form of heat or light. Such reactions, in which energy is released in the form of heat and light are referred to as exothermic reactions.
The electrons in metals like
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Chapter 21 Solutions
Chemistry & Chemical Reactivity
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- Hydroxylamine 1NH2OH2 reduces copper(II) to the free metal in acid solutions. Write a balanced equation for the reaction,assuming that N2 is the oxidation product.arrow_forwardConsider the production of 100 kg of sodium metal using a current of 50,000 A, assuming a 100% yield.(a) How long will it take to produce the 100 kg of sodium metal?(b) What volume of chlorine at 25 °C and 1.00 atm forms?arrow_forwardCopper (I) compounds undergo disproportionation. Write the chemical equation for the reaction involved and give reason.arrow_forward
- Assume that you have these materials:a) Li (s); b) Br2 (l); Ge (s) and d) Si(s).Choose the best electrical conductor among them and explain why.arrow_forwardNitrous oxide (N₂O), the “laughing gas” used as an anes-thetic by dentists, is made by thermal decomposition of solid NH₄NO₃. Write a balanced equation for this reaction. What arethe oxidation states of N in NH₄NO₃ and in N₂O?arrow_forwardThe prefix eka- comes from the Sanskrit word for “one.”Mendeleev used this prefix to indicate that the unknownelement was one place away from the known element thatfollowed the prefix. For example, eka-silicon, which we nowcall germanium, is one element below silicon. Mendeleevalso predicted the existence of eka-manganese, which was notexperimentally confirmed until 1937 because this element isradioactive and does not occur in nature. Based on the periodictable shown in Figure 7.1, what do we now call the elementMendeleev called eka-manganese?arrow_forward
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