What a balanced and unbalanced chemical equation looks like?

Answer 1

Unbalanced: C3H8 + O2 -> H2O + CO2 (Left side: 3C, 8H, 2O; Right side: 1C, 2H, 3O) Balanced: C3H8 + 5O2 -> 4H2O + 3CO2 (Left side: 3C, 8H, 10O; Right side: 3C, 8H, 10O)

Answer 2

A balanced chemical equation has the same number of atoms of each element on both sides of the equation, ensuring that mass is conserved. An unbalanced chemical equation does not have the same number of atoms of each element on both sides, violating the law of conservation of mass. Balancing involves adjusting coefficients in front of chemical formulas to achieve balance.

Answer 3

A chemical formula will list all elements present by their abbreviations used on the Periodic Table. A subscript listing how many atoms of each element are present in the chemical will follow each element abbreviation.

Answer 4

In chemistry a molecular formula is used to illustrate the elemental composition and atomic quantities of a given molecular substance. A molecular formula is in the format of an elements symbol followed by a subscript of the # of atoms of each. For example water (chemically also known as dihydrogen monoxide) is H20 with the H and 2 symbolizing 2 atoms of hydrogen and a single oxygen.

Answer 5

I'll start with a simple example:

H2O --> H2 + O2

This is not balanced, but to balance you use coefficients along with the subscripts of the reaction to make the elements on both side of the arrow correspond with one another.

Start with writing down the amount of each element with just their subscripts.

H2O:

H=2

O=1

H2 + O2:

H=2

O=2

Now notice how you need one more Oxygen (O) on the first part of the reaction, so then you would use a coefficient to double the H2O, which turns out like this:

2H2O --> H2 + O2

2H2O:

H=4

O=2

H2 + O2:

H=2

O=2

Now notice that the oxygen is fixed, but the hydrogen (H) doubled as well, so you need to double the hydrogen on the other side:

2H2O --> 2H2 + O2

2H2O:

H=4

O=2

2H2 + O2:

H=4

O=2

This equation is now completely balanced.

Answer 6

A chemical formula is a representation of an element or compound using symbols and abbreviations. It tells how many atoms and molecules of an element are present in the chemical.

Answer 7

Any ionic compound can be represented by the general formula MN, where "M" is a metal, and "N" is a non-metal.

Answer 8

To right of the equal sign are placed the products, to left are placed the reactants.