What happens when calcium oxide reacts with silicon oxide?
The calcium oxide then reacts with silica (sand) impurities in the haematite, to produce slag – which is calcium silicate.
What type of chemical reaction is CaO?
The decomposition of limestone (CaCO3) to make lime (CaO) is also an endothermic process; it is necessary to heat limestone to a high temperature for this reaction to occur.
Why is the reaction between calcium oxide and silicon IV oxide called an acid base reaction?
Answer : Because the product is a salt. CaO is the oxide of ametal, a basic anhydride, which gives the base Ca(OH)2 in water. SiO2 is the oxide of a nonmetal, an acid anhydride, which reacts as an acid.
Is silicon an oxide?
Silicon dioxide (SiO2), also known as silica, is a natural compound made of two of the earth’s most abundant materials: silicon (Si) and oxygen (O2). Silicon dioxide is most often recognized in the form of quartz. It’s found naturally in water, plants, animals, and the earth. The earth’s crust is 59 percent silica.
What are combination reactions?
A combination reaction is a reaction in which two reactants combine to form one product. Oxygen and the halogens are very reactive elements and are likely to undergo combination reactions with other elements.
Why is it essential to balance a chemical reaction?
A chemical equation should always be balanced because the law of conservation of mass states that matter can neither be created nor destroyed so in a chemical equation the total mass of reactants must be equal to the mass of products formed i.e. the total number of atoms of each element should be equal on both the …
What type of reaction is an exothermic reaction?
Exothermic reactions are reactions or processes that release energy, usually in the form of heat or light. In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants.
What type of chemical reaction is p4 O2 → p2o3?
Type of Chemical Reaction: For this reaction we have a combination reaction. Balancing Strategies: This combination reaction is a lot easier to balance and if you can get an even number of oxygen atoms on the reactants side of the equation.
Why is SiO2 not SiO4?
The formula for silica is very simple—SiO2. The silica structures (and those of metal silicates) have only SiO4 tetrahedra, and the 1:2 ratio of SiO2 requires that each oxygen atom is shared by two tetrahedra in silica. Liquid silica does not readily crystallize but solidifies to a glass.