1). Write the reaction equation.
o Chemical reactions change the original substances (reactant = reactant) into new substances (products).
o The type and number of atoms involved in the reaction does not change, but the chemical bonds of these changes.
o Chemical bonds in the reactants decided and formed new bonds in the products.
o atoms are rearranged to form the reaction product.
example:
Description:
1. The arrow indicates the direction of the reaction (mean = form or react to).
2. Lowercase letters in parentheses refer to the form or state of a substance in question (g = gass, l = liquid, s = solid aq = aqueous / aqueous solution).
3. Numbers that precede the chemical formulas of substances called coefficient of reaction (to balance the atoms before and after the reaction).
4. Reaction coefficient also states the simplest ratio of the particles of substances involved in the reaction.
1. The arrow indicates the direction of the reaction (mean = form or react to).
2. Lowercase letters in parentheses refer to the form or state of a substance in question (g = gass, l = liquid, s = solid aq = aqueous / aqueous solution).
3. Numbers that precede the chemical formulas of substances called coefficient of reaction (to balance the atoms before and after the reaction).
4. Reaction coefficient also states the simplest ratio of the particles of substances involved in the reaction.
Ø Writing equation can be done in 2 steps:
1). Write the chemical formula reactants and products, complete with testimony may be.
2). Equalization, which gives the corresponding coefficients so that the same number of atoms of each element on both sides (the simple way).
example:
1). Write the chemical formula reactants and products, complete with testimony may be.
2). Equalization, which gives the corresponding coefficients so that the same number of atoms of each element on both sides (the simple way).
example:
Step 1: 
(not equal)
(not equal)
Step 2:
(is equivalent to)
(is equivalent to)
Tidak ada komentar:
Posting Komentar