Question

Define the following terms :-
a) chemical change
b) chemical bond
c) Effervescene
d) Precipitate​

Answer 1

$\Huge \underline{\mathcal \pink{A}\purple{\frak{nSwer}}}$

a)Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

b) A chemical bond is a force which holds the atoms of a molecule in a compound.

c) Effervescence is the formation of gas bubbles in a liquid by a chemical reaction.

d) The precipitate is the insoluble solid substance formed due to chemical reaction.

Answer 2

Answer:

$\fbox \purple{Answer ♡︎\: }$

Chemical change :- A chemical change occurs when a new substance is formed through a chemical reaction like when fruit ripens or rots.

Chemical bond :- Chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world.

Effervescene :- The property of forming bubbles : the action or process of effervescing They produced a still wine, then put it through a second fermentation to raise the alcohol level and create the effervescence.

Precipitate :- When we talk about precipitation, we are talking about water that is falling out of the sky, this could be rain, drizzle, snow, sleet, hail or something rarer!