Answer:
The answer is endothermic as the heat flows into the system from the surroundings. The products are at higher energy than the reactants, as they have absorbed energy.
It is a Nonmetal and a Nobel Gas
Answer:
a definite to indefinite
Explanation:
because if it is in liquid the volume is trusted,but if it is in gas the volume would have multiplied
i think u can pit it well
Answer:
to separate the compounds by gravity
Explanation:
Centrifuging is the process of separating compound in a liquid mixture by means of gravity and settling. This makes use of the density principle. In the process, the sample is added to the centrifuge. This is then rotated at a certain speed, say 50 rpm. The circular motion creates a force of gravity that pulls the compounds downwards. This then separate the compounds. The heaviest and most dense go down first, then the lighter particles on the top.
Sodium chloride is the chemical name for salt and is composed of sodium and chlorine, so it is a compound.
