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Oxygen.
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What gas must be present for a combustion reaction to occur?
Oxygen gas must be present for a combustion reaction to occur.
What key feature must a chemical equation have for it to be classified as a combustion reaction?
The product must be oxidized, i.e, Oxygen must be on the reactant side. Also, the reactant will form its oxide and also liberate heat energy. In case of hydrocarbons, Carbon Dioxide, water and heat energy will be liberated and it is a must when writing the chemical equation.
Which element is always a reactant in a combustion reaction?
Every combustion reaction we deal with produces gas with oxygen in the product, so O2 (oxygen gas) must be a reactant. For example, methane reacts with Oxygen in this way: CH4(l) + O2(g) -> C02(g)+2H2(g) Note O2 in gaseous form as a reactant.
What must be present for combustion to occur?
For combustion to occur, three elements must be present: fuel, oxygen, and heat. Fuel provides the energy source for combustion, oxygen is required to sustain the chemical reaction, and heat is needed to initiate the combustion process. Without any of these elements, combustion cannot take place.
Is glucose a reactant in respiration?
Glucose must be present in order for cellular respiration to occur. Cellular respiration is the process in which glucose is broken down in to ATP (energy), Carbon Dioxide, and water. Glucose is a reactant in the sense that it must be present for the reaction to occur.
What element must be present in order for something to burn?
Oxygen (O2) is required for combustion.
What conditions must be present in a space station to support life?
everything
Why is it so important for the ignition process to occur in a gasoline car?
For a combustion engine to work, it must have the following: Air Fuel Ignition if any of the above are not present, combustion cannot take place.
Why does a reaction stop when the limiting reactant is consumed even though there is plenty of the other reactants present?
For a reaction to occur all the reactants are required. If there is no supply of one of the reactants the reaction must stop because there isn't any more of it to keep reacting. When one of the reactants is in low supply or runs out it is called the limiting reactant.
What are the ideal conditions for an explosion?
The ideal conditions for an explosion typically involve a combination of a flammable substance, oxygen, and an ignition source. The substance must be present in the correct concentration, the oxygen level must be sufficient to support combustion, and the ignition source must provide the necessary energy to initiate the reaction. Additionally, confined spaces that allow pressure to build can also contribute to the intensity of an explosion.
What is the silver ion concentration in a solution prepared by mixing 427 mL of 0.395 M silver nitrate with 457 mL of 0.532 M sodium chromate?
To find the concentration of silver ions in the final solution, you must first identify the limiting reactant based on the stoichiometry of the reaction. Once you determine the limiting reactant, calculate the amount of silver ions present in the solution by multiplying the initial concentration of silver ion from the limiting reactant by the volume of the limiting reactant used.
Which is the limiting reactant when masses of reactants are same?
You must first convert the mass of each reactant into moles of each reactant. Having the same mass does not mean that the amount of each reactant is the same, because each reactant has its own unique molar mass. Refer to the related link below for instructions on determining limiting reactants, also called limiting reagents.
