These are the starting substances, called reactants.
The first part of a chemical equation is called the reactants. Reactants are the starting substances that undergo a chemical reaction to form products.
The Reactants are the first part of a chemical equation and the Products are the second part of a chemical equation.
Br- is chemical symbol for a bromide anion. It is not an 'equation', it can be a part of a chemical equation, like in this precipitation reaction (example) Ag+(aq) + Br-(aq) --> AgBr(s) .
That is the right part.Left part shoes the reactants
You can only change the coefficients.
Parentheses are used to mean whispered, or an afterthought. Or in Math, to be figured separately from the first part of the equation.
formulas
This is a net ionic equation.
D.) net ionic equation -plato
A net ionic equation shows the chemical species that are actually involved in a reaction, excluding spectator ions. This allows for a clearer representation of the essential components taking part in the chemical process.
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The phrase "first difference" is usually associated with a sequence of numbers: a(1), a(2), a(3), a(4), ... . The sequence may have a simple rule for generating the numbers , a complicated rule or, if it is a random sequence, no rule at all.The sequence of first differences is a(2)-a(1), a(3)-a(2), a(4)-a(3), ...