4I₂+9O₂= 2I₄+2O₉
Reactants: 8 iodine, 18 oxygen
Products: 8 iodine, 18 oxygen
Balanced!!
Answer:
AB + CD → AC +BD
Explanation:
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AC +BD
Example:
The following reaction is double replacement reaction.
CaCO₃ + 2HCl → CaCl₂ + H₂CO₃
While,
A + B → AB
Synthesis reaction:
It is synthesis reaction. The reaction in which two or more simple substance react to give one or more complex product.
AB → A + B
Decomposition:
It is the decomposition reaction. The reaction in which one reactant is break down into two or more product.
AB + C → AC + B
Single replacement:
It is the reaction in which one elements replace the other element in compound.
Answer: lead
Lead has been used for gamma radiation shielding since the discovery of radioactive material & x-ray.
Explanation:
A barrier present at the open sides of stair case and platforms that prevent falling is known as a banister.
This banister is very helpful for old people and children as they need a support to move upwards whether it is a stairways or a platform.
Also, a banister is not used by any particular age group. It is for the people as a support to prevent them from falling.
