Law of Conservation of Mass

Front

During chemical reactions, the substances that are used are called?

Back

Reactants

Front

During chemical reactions, the new substances created are called?

Back

Products

Front

What happens to atoms after a chemical change?

Back

They bond in different ways/get rearranged.

Front

How many Oxygen atoms are present in the product of the following equation: 2SO₂ + 2H₂O₂ ----> 2H₂SO₄

Back

8

Front

How many Hydrogen atoms are present in the product of the following equation:
2SO₂ + 2H₂O₂ ----> 2H₂SO₄

Back

4

Front

The number of atoms of  N (nitrogen) in 3N₂O₅ is

Back

6

Front

Law of Conservation of Mass

Back

Mass is never created or destroyed

Front

In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B should have? Options: 4g, 5g, 9g, 14g

Back

4g

Front

The number in front of a compound or element is a

Back

Coefficient

Front

The number to the lower side of an element is a

Back

Subscript