Answer:
B
Explanation:
Solutions of substances that can conduct electricity are termed electrolytes. These solutions allow electricity to pass through them.
How strong a solution is to allow the passage of electricity is strongly dependent upon the availability of charge carriers within the solution matrix. In sharp contrast to the other solutions in the question, we can see that the presence of sodium and chloride ions in the matrix provides a boost for the solution to act properly as an electrolyte. Hence, it is a better solution than the rest of the options to serve as an electrical conductor
It represents an observation and he formed a hypothesis to explain the observation.
Answer: C. the same amount of energy as
Explanation:
A reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back.
Reversible reactions will reach an equilibrium point where the concentrations of the reactants and products will no longer change.
Thus if forward reaction is exothermic i.e. the heat is released , the backward reaction will be endothermic i.e. the heat is absorbed and in same amount.
The amount of energy released will be equal and opposite in sign to the energy absorbed in that reaction.
Liquid, liquids have a definite volume but can take the shape of whatever container holds them.
ANSWER:
Potential energy due to the position of an object above Earth's surface is called gravitational potential energy.
EXPLANATION:
Gravitational energy is the potential energy compared with gravitational force, as work is needed to further things against Earth’s gravity. The potential energy due to high positions is called gravitational potential energy, and is evidenced by water in an elevated storage or kept behind a dam. If an article falls from one point to different point inside a gravitational field, the force of gravitation will do actual work on the object, and the gravitational potential energy will decrease by the same amount.
