Find out the names of these samples and arrange them in the decreasing order of their reactivity. Hint: Samples A and B are placed below calcium and above hydrogen in the activity series, whereas sample C is the least reactive metal and is placed between mercury and gold.
What do you call the black substance that is present in pencils? Is it a metal or a non-metal? Hint: Recall the properties of non-metals. Sample A can displace sample B from its salt solution and sample B can displace sample C, but sample C cannot displace samples A and B. H Write a letter to the editor of a local newspaper on the issue of the lack of a playground in your area.
The first five elements are highly reactive metals that will react with cold water, hot water, and steam to form hydrogen gas and hydroxides. The next four metals magnesium through chromium are active metals that will react with hot water or steam to form their oxides and hydrogen gas. All the oxides of these two groups of metals will resist reduction by H 2 gas. The six metals from iron to lead will replace hydrogen from hydrochloric, sulfuric and nitric acids.
Their oxides can be reduced by heating with hydrogen gas, carbon, and carbon monoxide. All the metals from lithium to copper will combine readily with oxygen to form their oxides.
The last five metals are found free in nature with little oxides. Their oxides form through alternate pathways and will readily decompose with heat. The series chart below works remarkably well for reactions that occur at or near room temperatures and in aqueous solutions.
Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. The picture on the left is of sodium, which has a violent reaction when it comes in contact with water. The picture on the right is of silver, a metal so unreactive with water that it can be made into drinking vessels. However, we have a tool that allows us to make better predictions about how certain elements will react with others. Single-replacement reactions only occur when the element that is doing the replacing is more reactive than the element that is being replaced.
Therefore, it is useful to have a list of elements in order of their relative reactivity. The activity series is a list of elements in decreasing order of their reactivity.
Since metals replace other metals, while nonmetals replace other nonmetals, they each have a separate activity series. For a single-replacement reaction, a given element is capable of replacing an element that is below it in the activity series. When a metal in elemental form is placed in a solution of another metal salt it may be more energetically feasible for this "elemental metal" to exist as an ion and the "ionic metal" to exist as the element.
Therefore the elemental metal will "displace" the ionic metal and the two swap places. Only a metal higher in the reactivity series will displace another. A metal can displace metal ions listed below it in the activity series, but not above. For example, zinc is more active than copper and is able to displace copper ions from solution.
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