A bacterium swimming away from a toxic chemical is an example of what aspect of living things?
the capacity to respond to environment
Evolution is a central, unifying theme in biology because the enormously diverse forms of life on Earth have all been shaped by it
An atom with an unequal number of protons and electrons is called an ion. This produces a charged atom, or ion.
An ion is an atom with a number of electrons that is different than the number of protons.
The naturally occurring helium atom is chemically inert because: its outermost shell is filled with electrons.
A chemical element is uniquely identified …show more content…
There are 2 additional electrons in the outer shell.
Oxygen is more electronegative than hydrogen
What type of bond joins the carbon atom to each of the hydrogen atoms?
Question #13
Each carbon-hydrogen bond involves a single pair of equally shared electrons.
What type of bond is joining the two hydrogen atoms?
Question #8
A covalent bond is one in which electron pairs are shared.
A molecule is defined as two or more atoms held together by covalent bonds.
This atom can form up to 4 single covalent bond(s).
Question #10
A(n) double covalent bond joins these two oxygen atoms.
Question #11
The oxygen atoms are sharing two pairs of electrons.
A covalent bond involves the sharing of electrons
Equal sharing of electrons results in a nonpolar covalent bond
Electrons are shared in covalent bonds while ionic bonds involve the attraction between oppositely charged ions.
Electrons are shared in covalent bonds, whereas ionic bonds involve the loss or gain of electrons.
Hydrogen bonds are responsible to the attraction of water molecules to each other. This is what causes cohesion and surface tension of