Three.
9
We can use it to find the coefficients of numbers when we expand a binomial. We also use it in probability theory. In fact there are many uses for it.
That will be difficult to answer without seeing the expression. Best guess: One less than the number of terms in the expression.
4
In the expression 2x, the 2 is the coefficient. It tells you how many of the x you need.
Three.
Seven, though they can be reduced to 3 if like terms are combined.
Subscripts state how many atoms and Coefficients state how many molecules there are. So when balancing an equation you always adjust the coefficients. When this equation is balanced, what is the coefficient for Ni(NOËÄ)ËÄ? 4
9
Both. you must have the correct subscripts to represent the correct chemical then you only change the coefficients to balance the equation. The product of a coefficient and a subscript tells how many atoms are present.
An algebric expression can have any number of terms.
The number of atoms is indicated by coefficients.
It is an expression because it does not contain an equality sign.
There are 2.
there are 2
3