Select all that are true about a COEFFICIENT in a chemical equation.
A
Coefficients must never be changed when balancing an equation.
B
Coefficients can be changed when balancing an equation.
C
Coefficients indicate the number of atoms of each element there are in a compound.
D
Coefficients indicate the number of molecules of each compound.
E
Coefficients x Subscripts = # atoms of that element
F
Coefficients + Subscripts = #atoms of that element

The true statements about a COEFFICIENT in a chemical equation are Coefficients can be changed when balancing an equation, Coefficients indicate the number of molecules of each compound, Coefficients × Subscripts = # atoms of that element.

Hence, Option B, D and E are correct.

What is a Chemical reaction ?

A chemical reaction is a process in which chemical bonds between atoms to break and reorganize, to form other new substances.

What is coefficient in a chemical reaction ?

In a chemical reaction the coefficient are the number placed in front of the formula or chemical symbol.

Now lets check all options one by one

Option (A): Coefficients must never be changed when balancing an equation.

We can change the coefficient in a chemical reaction but we cannot change the subscript in a chemical reaction.

So, it is incorrect option.

Option (B): Coefficients can be changed when balancing an equation.

Coefficients can be changed when balancing an equation is true because when we are changing the coefficients in a chemical reaction that means we are changing the number of molecules of the particular substance.

So, it is correct option.

Option (C): Coefficients indicate the number of atoms of each element there are in a compound.

Subscript indicate the number of atoms of each element there are in a compound.

So it is incorrect option.

Option (D): Coefficients indicate the number of molecules of each compound.

Coefficient indicates the moles , molecules of a given formula.

So, it is correct option.

Option (E): Coefficients x Subscripts = # atoms of that element

Number of atom of each element = Coefficient × Subscript

So, it is correct option.

Option (F): Coefficients + Subscripts = #atoms of that element

Coefficients × Subscripts = atoms of that element

So, it is incorrect option.

Thus, we can say that the true statements about a COEFFICIENT in a chemical equation are Coefficients can be changed when balancing an equation, Coefficients indicate the number of molecules of each compound, Coefficients × Subscripts = # atoms of that element.

Hence, Option B, D and E are correct.

Learn more about the Chemical reaction here: https://brainly.com/question/11231920

#SPJ2