F
Polar Covalent Bonds
a bond between two atoms of elements with different electronegativities
Has a positive charge
Protons
Sulfur has an atomic number of 16 and a mass number of 32. Sulfur has __ protons, __ electrons and __ nutrons
16, 16, 16
Cavendish bananas are _____ to naturally evolve because _____
Unlikely, they are clones of eachother
Carbon-12 contains 6 protons, 6 neutrons and 6 electrons. Which subatomic particle, if changed, would change the identity of the element?
Protons
Hydrogen Bonds
a bond between a hydrogen and an electronegative atom (the bonded atoms are in two different molecules)
Has no charge and may differ in number in atoms of the same element
Nutrons
What does the term cohesion refer to?
The attraction between multiple water molecules.
While studying, your classmate says the C-H bond is polar and the C-C bond is nonpolar. What is your response?
False! Both are non-polar bonds. Carbon and hydrogen have similar electronegativities.
Which of the following is the electron distribution of an atom that can form 4 covalent bonds?
A
Nonpolar Covalent Bonds
a bond between two atoms of the same element
The four most common elements in the human body include oxygen, carbon, hydrogen, and _____________.
Nitrogen
Which of the following best describes natural selection?
Individuals with traits better suited to their environment are more likely to survive and reproduce.
Order the atoms below from the highest electronegativity to the lowest electronegativity.
ONCH
Life’s processes involve the expression and ___________ of genetic information.
Transmission
Ionic Bonds
a bond between a cation and an anion
Which type of bond holds the hydrogen atoms to the oxygen atom within a single water (H₂O) molecule?
Polar Covalent Bonds
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In the above image, which hydrogen bond is incorrectly drawn?
C
Water and oil do not mix. While water is polar, Oil is non-polar and ________.
Hydrophobic
Order the structures in the endomembrane system from location of genetic information to location of protein secretion.
Nucleus
Endoplasmic Reticulum
Golgi Apradus
Cell Membrane
Determines chemical behavior
Electron
In lab you are given a basic solution and asked to lower the pH of the solution to neutral. Which of the following solutions could NOT be used?
1, 3, 6, 8
What is the mass number of an atom with 50 electrons, 51 neutrons, and a 50 protons?
101
In the chemical reaction above, "B" represent the __________ of the reaction.
Products
Match the monomer with its polymer:
Nucleus:
Amino Acid:
Glucose:
DNA
Polypeptide
Starch