Solutions containing the maximum amount of solute that they can hold are known as saturated solutions.
Answer:
NaCl
Explanation:
because He which is helium gas its an element alone,
Cl which is chlorine is a single element,
B which is Boron and its a single element,
but NaCl which is simply called table sugar is the combination between Na, sodium and Cl, chlorine , so its called a compound not an element.
Index fossils<span> can be </span>used<span> to help determine the relative age of </span>rock<span> layers. </span>Index fossils<span> are from species that only existed for a short time. </span>Index fossils<span> are found in</span>rock<span> layers. Trilobites and Graptolites are </span><span>index fossils.</span>
Answer:
The net ionic equation:

Explanation:
The given chemical reaction is as follows.

The total ionic equation is as follows.

Similar ions on the both sides of the reaction will be cancelled.
The remaining reaction is

Therefore, the net ionic reaction is as follows.

Answer:
The answer of this question is 3