BALANCING EQUATION

It states that the mass is neither created nor destroyed in chemical reactions.

• Law of Conservation of Energy

• Law of Conservation of Mass

• Law of Definite Composition

• Law of Multiple Proportions

What do you call the number written before the symbol to balance an equation.

• subscript

• atomic number

• coefficient

• atomic mass

In a chemical reaction, the new substances formed are called ______________.

• Products

• Yields

• Molecules

• Reactants

The blue numbers in the image below represent ________

• oxidation numbers

• coefficients

• subscripts

• none of the answers are correct

When can you say that an equation is balanced?

• when number of atoms of reactants is greater than the products

• when number of atoms of products is greater than the reactants

• when number of atoms of reactants and products is equal

• when reactants yield to products

Is this equation balanced?

• yes

• no

• Not enough information

• cannot be determined

Fill in the blanks with coefficient:

PCl₅+_ H₂O→_ HCl+H₃PO₄

• 4, 5

• 1, 6

• 3, 8

• 2,2