In this thing learners conference the reactions of the non-metals, carbon and also sulfur
You are watching: Sulfur burns in oxygen to form sulfur dioxide
There space no demonstrations prescribed by CAPS because that this chapter, but we have contained colourful photographs to provide learners through some experience of the splendour of these reactions. Due to the fact that chemical reactions have the right to seem fairly abstract to learners and also learning about them in isolation may seem come them together if it lacks relevance, us have likewise attempted to administer some real-world context to the instances in this chapter.
in ~ the finish of the thing a few additional non-metals and also their reactions with oxygen have actually been included as enrichment. Girlfriend may choose to omit these, yet they carry out highlight an important point, namely that not all non-metals type non-metal dioxides once they react through oxygen. Since both central examples that this chapter an outcome in non-metal dioxides (viz. CO2 and SO2), one have to be mindful of the possible introduction that a ofradiation in this regard.
4.1 The general reaction the non-metals v oxygen (0.5 hours)
4.2 The reaction of carbon with oxygen (1 hour)
Activity: coal burning in air
Drawing, balancing chemistry equations
4.3 The reaction the sulfur through oxygen (1 hour)
Activity: The reaction in between sulfur and also oxygen
Analysing, balancing chemistry equations, drawing, modeling
4.4 other non-metal oxides (0.5 hours)
This is one optional, extension section.
What happens once a non-metal and also oxygen react? What is the product called? just how should we compose equations for the reactions of carbon and sulfur through oxygen? carry out all non-metals form dioxides through oxygen?
Oxygen is all around us in the air we breathe. It is a really reactive element. When an aspect is reactive, it way that it will conveniently react with many other substances. Us saw proof of the reactive nature of oxygen once we observed exactly how it reacted v iron and also magnesium to form metal oxides.
substances that are not reactive are referred to as unreactive or inert.
as soon as a substance reacts v oxygen, us say it oxidises. That is called an oxidation reaction. Early on chemists used the ax oxidation for all reactions in i m sorry oxygen was a reactant. The an interpretation of an oxidation reaction is broader and consists of other reaction which you will learn around in Gr. 10 if you proceed with physical Sciences.
In this chapter us look in ~ a few reactions the non-metals v oxygen. Where perform we discover non-metals on the routine Table?
On the right.
The basic reaction the non-metals v oxygen
reactive inert non-metal oxide oxidise
when a non-metal burns in oxygen, a non-metal oxide develops as product. Right here is the word equation for the basic reaction:
non-metal + oxygen → non-metal oxide
can you check out that that looks comparable to the word equation because that the reaction between a metal and oxygen? The only difference is that the word "metal" has been replaced with "non-metal" on both political parties of the equation. Non-metal oxides have various chemical properties to steel oxides. We will certainly learn more about this later on in the term.
crucial chemical difference in between metal and non-metal oxides is that when metal oxides dissolve in water, they form basic solutions and also when non-metal oxides dissolve in water, they type acidic solution.
Let"s look in ~ a few specific examples of reactions in i m sorry non-metals react v oxygen. The very first one is one the you are currently familiar with, namely the reaction of carbon and also oxygen.
The reaction that carbon v oxygen
fuel fossil fuel generate non-renewable renewable alternative
have actually you ever seen coal burning in air?
coal is a form of carbon that is supplied as fuel for plenty of different purposes. It is one of the main fossil fuels that humans use come generate electricity for powering our industries, our tasks and our living spaces. We will certainly look in ~ this in more detail following term in Energy and Change.
37% that the electricity generated an international is produced from coal.
learner should have encountered the subject coal, fossil fuels, renewable and also non-renewable energy sources and electricity generation in previous qualities (specifically in Gr 6 and 7 Energy and also Change) and they will also look in ~ it again next term.
coal burning in waiting The power in coal comes from the power stored in plants and other organisms the lived hundreds of millions of year ago. End the millennia, class of dead plants and other organic waste were extended by class of water and also soil. The heat and pressure indigenous the peak layers led to the plant stays to turn right into energy-rich coal.
charcoal is a form of carbon and also when it burns in oxygen we can represent the reaction through the complying with word equation:
carbon + oxygen → carbon dioxide
draw a picture equation for this reaction in the room below.
In the snapshot equation here, the black color atoms space carbon (C) and the red atoms are oxygen (O). If learners perform not have actually coloured pen or pencils, they deserve to use patterns and shading come differentiate between different atoms.
convert the picture equation right into a chemical equation. Is that balanced?
The chemistry equation is C + O2 → CO2. This equation is currently balanced.
What team is carbon in ~ above the regular Table?
The other elements in the same group as carbon will react in the same means as carbon through oxygen.
since coal is a non-renewable energy source as well together one that causes pollution and also other eco-friendly problems, scientists and also engineers proceed to look for alternate fuels and also energy sources to ultimately replace coal as an power source. Have the right to you think that the name of part alternative, renewable power sources?
Wind energy, solar energy, biofuels, nuclear energy (the latter is not strictly renewable). This contents is not consisted of in hat (as part of the great 9 Matter and Materials requirements). The question has been contained in an effort to develop some relevance. The topic of chemistry reactions is an abstract one and it frequently helps to carry out some real-world applications to connect it to other, much less abstract including learners" very own experience. This will additionally link come what learners will certainly cover following term in Energy and also Change.
In the next section, we space going to look at the development of another, less well-known, non-metal oxide named sulfur dioxide. I m sorry non-metal perform you think reacts through oxygen to form sulfur dioxide? view if you can write down the formula for sulfur dioxide before we carry on. Here is a hint: What walk the di- in dioxide mean?
The non-metal is Sulfur (S). To compose the formula, you might need to overview learners to realise there space 2 oxygen atoms in one molecule of sulfur dioxide: SO2
The reaction that sulfur with oxygen
What is the surname of the product that the reaction in between sulfur and oxygen? use the surname of the product and the general equation given at the start of the chapter to finish the following word equation:
sulfur + oxygen →
The equation should read: sulfur + oxygen → sulfur dioxide
A video clip on sulfur burning in oxygen
Sulfur burns in oxygen to type sulfur dioxide. Your teacher will certainly not demonstrate this reaction, due to the fact that the sulfur dioxide that forms is a poison gas that you and your classmates have to not be exposed to.
A video clip () and also a picture essay ( http://www.boston.com/bigpicture/2010/12/kawah_ijen_by_night.html) on sulfur mining.
Sulfur dioxide is occasionally used as a preservative for dried fruits, such together dried peaches and apricots and the guava rolls that so countless of united state love to eat. The truth that the is toxic way that very small quantities the it deserve to be included to food to maintain it. In very small quantities SO2 does not permanently harm a huge organism such together a person being, but bacteria cannot survive once it is present. Sulfur dioxide is also critical preservative in countless South african wines.
The antiquated (very old) surname for sulfur is "brimstone".
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In the following activity we are going to review word equations, snapshot equations and chemical equations, making use of the reaction in between sulfur and oxygen together our context.
The reaction between sulfur and also oxygen you wrote the word equation because that the reaction between sulfur and oxygen above. Go you compose the following?