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How do you tell endothermic reaction from an exothermic reaction by looking at the chemical equation?
You have to add up the bond energies of all the bonds on the products side and the reactants side. When bonds are formed energy is released. Conversely energy has to be put into a system to break bonds (like smashing a block of ice with a baseball bat) If there is more bond energy on the products side bonds were created (energy was released) which means the reaction is exothermic. If there is more bond energy on the reactants side, bonds were broken (energy put in) and so the reaction is endothermic.
In an exothermic reaction the products have a what type of bond?
An exothermic reaction can produce a covalently bonded compound or an ionically bonded one. It depends on the starting reactants.
When a chemical reaction occurs what does a chemical bond?
The bonds between the atoms in the reactants are broken, and new bonds are formed which results in new products, different from the reactants.
What represents the correct way to write a chemical equation reactants--products products equals reactants reactants equals sum sum--- reactants?
reactants ---> products
What represents the correct way to write a chemical equation reactants ----- products products equals reactants reactants equals sum sum ---- reactants?
reactants -----> products is correct
What must be true about the properties of the reactants and the properties of the products in a chemical reaction?
The reactants and the products must contain the same numbers of the same types of atoms, that is, atoms with the same atomic number, and either the products must contain at least one type of chemical bond distinct from any chemical bond in the reactants or the reactants must contain at least one type of chemical bond not found in the products.
What are components of the chemical reaction?
reactants and products and bond energy creates a chemical reaction
How are reactants converted to products in an elementary reaction?
A product of a chemical reaction is the substance that is formed.
How do you tell endothermic reaction from an exothermic reaction by looking at the chemical equation?
You have to add up the bond energies of all the bonds on the products side and the reactants side. When bonds are formed energy is released. Conversely energy has to be put into a system to break bonds (like smashing a block of ice with a baseball bat) If there is more bond energy on the products side bonds were created (energy was released) which means the reaction is exothermic. If there is more bond energy on the reactants side, bonds were broken (energy put in) and so the reaction is endothermic.
In an exothermic reaction the products have a what type of bond?
An exothermic reaction can produce a covalently bonded compound or an ionically bonded one. It depends on the starting reactants.
When a chemical reaction occurs what does a chemical bond?
The bonds between the atoms in the reactants are broken, and new bonds are formed which results in new products, different from the reactants.
What represents the correct way to write a chemical equation reactants--products products equals reactants reactants equals sum sum--- reactants?
reactants ---> products
What represents the correct way to write a chemical equation reactants ----- products products equals reactants reactants equals sum sum ---- reactants?
reactants -----> products is correct
What are the two basic parts of a chemical reaction?
Chemical reaction is the making and breaking of chemical bonds, leading to changes in the composition of matter. Chemical reactions do not create or destroy matter; they only rearrange it in various ways.
The only sure evidence for a chemical reaction is?
A kind of chemical bond in the possible reaction products that did not exist in the reactants, or a kind of chemical bond in the reactants that does not exist in the possible reaction products.
Are the products favored over the reactants or the reactants favored over the products?
keq3.5: products favored keq0.003: reactants favored
How many reactants and products are presented in a double replacement reaction?
2 reactants and 2 products
