Answer:
chemical symbol= Cl ( chlorine)
electrons= 17
2p electrons = 6
Answer:
A chemical reaction that stores energy is called an endothermic reaction. More energy might be released as products form than the energy needed to break the reactants apart. This chemical reaction will release energy. In other words, it will be an exothermic reaction.
Explanation:
Answer:
Aluminium metal reacts vigorously with all the halogens to form aluminium halides. So it reacts with chlorine, bromine, and iodine.
Answer:
The NH3 + with a PKa = 9.9
Explanation:
The Pka is a mathematical expression to express the dissociation grade of a substance in a solution, that means with a substance with a pKa small is a strong acid, and in this case since the solution pH is 8, that mean that the substance with high pKa ( lower acid strength) will predominate in a pH of 8.
Answer:
D. A pond freezing over is not a chemical reaction, it is a physical reaction.
