Balanced chemical equations - Introducing chemical.
Question: Write a balanced chemical equation for the reaction that occurs when barium carbonate decomposes into barium oxide and carbon dioxide gas when heated.
Write minimum two equations each for decomposition reactions where energy is supplied in the form of heat, light and electricity. asked Oct 17, 2017 in Class X Science by aditya23 ( -2,153 points) 0 votes.
Decomposition reactions are initiated by the addition of energy. A decomposition reaction is a chemical reaction in which some chemical bonds in a compound are broken and simpler substances are formed. The breaking of chemical bonds requires the addition of energy, usually in the form of heat.
Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following: (a) The number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgCl 2 and H 2. (b) The number of moles and the mass of oxygen formed by the decomposition of 1.252 g of silver(I) oxide.
The chemical equation described in section 4.1 is balanced, meaning that equal numbers of atoms for each element involved in the reaction are represented on the reactant and product sides. This is a requirement the equation must satisfy to be consistent with the law of conservation of matter. It may be confirmed by simply summing the numbers of atoms on either side of the arrow and comparing.
I can balance chemical equations to fulfill the Law of Conservation of Mass I can interpret changes in matter and energy from complete chemical equations I can write chemical reactions by interpreting word equations I can classify reaction types (synthesis, decomposition, single replacement, double replacement, combustion) I can predict the products of chemical reactions in writing complete.
Chemical reactions are represented by balanced chemical equations, with chemical formulas symbolizing reactants and products while chemical equations give information in two major areas: first, they tell us what substances are reacting (those being used up) and what substances are products (those being made). Second, the coefficients of a balanced equation tell us in what ratio the substances.