Answer:
a) Ionic
Explanation:
Natural and artificial compounds can be formed from two or more metals.
If the difference in electronegativity between the metals is very large, these compounds may be bonded by a mixture of chemical bonds. Those can be metallic bonds and other types of bonds.
According to the electronegativity difference between two components, if it is equal or higher than 1.7 they are classified as ionic bonding. In this sense, if we have two metals with a very large difference of electronegativity. Let's suppose higher than 1.7, they will form an ionic bonding.
Finally, Answer is a) Ionic bonding when the difference in electronegativity is very large.
Answer:
D (But as a heads up, you wrote barium instead of Bromine)
Explanation:
The Potassium atom will lose an electron since its valence shell only has one, while Bromine has 7 electrons in its valence shell. Potassium wants to get rid of its one electron, Bromine wants to gain that one electron to get a full shell.
Potassium will become a CATION with a positive charge (since it lost an electron), Bromine will become an ANION with a negative charge (since it gained an electron)
Answer:
They are physical changes.
Explanation:
This is because there in no chemical reaction taking place, just a physical change.
A physical change in a change in which the chemical structure of the substance does not change. Ice, water and steam are all the same on a molecular level, thus changing from ice to water or from water to steam are physical changes.
A chemical change is a change in which the chemical structure of the substance undergoes a change, since this does not happen going for A to B or B to C they are not chemical changes.
D is to stop the current and the force can be removed
As another example, consider the downward force<span> of gravity that the Earth exerts on </span>you<span> (also </span>called<span> weight). In turn, </span>you<span> exert an exactly equal upward </span>force<span> on the Earth. Together, those </span>two forces<span> form an action-reaction </span>force pair<span>.</span>
