Answer: metals loss their valence electron during bonding to form a compound
Explanation:
A single bond contains <u>two</u> shared electrons.
The correct answer is A. T<span>rapping of heat by water vapor and gases in the atmospere. The sun gives off short-wave radiation, which is then absorbed by the atmosphere, which keeps us nice and cozy here on Earth! </span>
Answer:
i) increase
ii) decrease
iii) remain the same
iv) No, because it dissociates completely.
Explanation:
On a 10-fold dilution of a weak acid, the pH will increase because the concentration of hydrogen ions will decrease thereby increasing the pH to close to that of water.
On a 10-fold dilution of a weak base, the pH will decrease due to the removal of hydroxide ions from the solution. This results in the solution having a H closer to that of water.
If one adds a very small amount of strong base to a buffered solution, the pH will remain constant because a buffer solution acts to withstand any change to its pH on the addition of small quantities of either an acid or a base.
A buffer solution cannot be made with a strong acid because thy undergo complete dissociation. Therefore, any small addition of base or acid will result in very large changes in the pH of the solution. A buffer solution is made with a weak acid and its conjugate base or a weak base and its conjugate acid.
Hey there!
Your answer is c. by the transfer of one or more electrons from one atom to another.
Ions can be positive or negative. Positive ions are called cations, and negative ions are called anions.
Electrons are transferred because two atoms have a large difference of electronegativity and the electrons are shared so unequally that the electrons are completely transferred from one atom to another, forming ions.
Hope this helps!
