B. a ceiling fan blows air
C. heat rises from a chimney
An element from group 2 will form ionic bonds with a nonmetal group 13-17, therefore the correct answer is option C.
When electrons are moved from the atoms of one element to the atoms of another, creating positive and negative ions, ionic bonds are created. Ionic bonds are only between metals and non-metals occur. There can not be the formation of the ionic bond between two metals.
These ionic bonds are also known as electrovalent bonds as they are formed because of the transfer of the electrons.
There must be one electropositive element that can release electrons which is metal as metals have extra electrons in their valence shell.
There must be one electronegative element involved during the formation of the ionic bond, which is a nonmetal as nonmetals have few electrons left to complete their outermost shell.
As given in the problem element of group 2 are metals and will form ionic bonds with the nonmetal elements of the group 13-17.
Thus, the correct answer is option C.
Learn more about the ionic bond from here
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Answer:
c
Explanation:
it is c because I just took that test on Usa Test Prep and got a 100%
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They add energy to the work.
B.
They increase the force needed to work.
C.
They reduce the speed of work.
D.
They increase the distance over which a force is applied.
C.?
Answer: D. They increase the distance over which a force is applied.
Explanation:
Simple machines are basic mechanical devices which make our work easier like lever, pulley, wheel and axle, inclined plane, wedge and screw. The magnitude of the force or direction is altered using a simple machine. They increase the distance over which a force is applied. They use mechanical advantage to increase the magnitude of the force.
C) the land heating faster than the water
D) boats passing the shore too closely
Forgive my drawing skills