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A&P - Class 18 The Chemical Level Quiz

angela le
Quiz by angela le, updated more than 1 year ago
angela le
Created by angela le almost 4 years ago
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Description

A quiz based on Dr. David's class 18 lecture

Resource summary

Question 1

Question
What is matter?
Answer
  • Anything that occupies space and has mass
  • The amount of electrons in a atom
  • The amount of matter in an object

Question 2

Question
What is mass?
Answer
  • The space that an object occupies
  • The amount of matter in any object
  • The central act of divine worship in the Catholic Church

Question 3

Question
Of the ((92)) naturally occurring elements, how many are in the human body?
Answer
  • 50
  • 26
  • 100
  • 25

Question 4

Question
Of the ((26)) elements in the human body, which are the ones that make up 96% of the body's mass?
Answer
  • Carbon, Hydrogen, Onion, Nitrogen
  • Calcium, Helium, Oxygen, Nipple
  • Carbon, Hydrogen, Oxygen, Nitrogen
  • Carbon, Hydrogen, Oxycontin, Nitrous

Question 5

Question
3.6% of the body's mass contain 8 elements, and the remainder 0.4% are trace elements.
Answer
  • True
  • False

Question 6

Question
What is a true statement?
Answer
  • Radioactive isotopes are stable and bond to become more complex structures
  • The chemical properties of an atom are a function of it's electrons.
  • Electrons have a positive charge
  • Queen Elizabeth VII of France was a weeaboo

Question 7

Question
How can an element have the same atomic number but a different mass number?
Answer
  • Because they have a different number of electrons.
  • Because they have a different number of protons
  • Because they have a different number of neutrons.
  • Because they are radioactive.

Question 8

Question
Isotopes are...
Answer
  • Atoms of the same elements with different mass number
  • Atoms of the same element with a negative or positive charge
  • Are a positively or negatively charged compound
  • Unstable and destructive

Question 9

Question
What are radioactive isotopes?
Answer
  • Are unstable and decay into a simpler, more stable configuration. In the process, they can decay into a more simple element
  • An electrically charged atom or group of atoms with an unpaired electron in its outermost shell.
  • A substance made of two or more atoms that can be broken down into the two or more different elements
  • derp

Question 10

Question
What is the difference between MASS NUMBER and ATOMIC MASS? (tricky one)
Answer
  • The MASS NUMBER is the sum of the protons and neutrons of the atom. The ATOMIC MASS of an element is the average weight of all its naturally occurring isotopes.
  • The MASS NUMBER is the average weight of all its naturally occurring isotopes. The ATOMIC MASS is the sum of the protons and neutrons of the atom.
  • The ATOMIC MASS is the number of protons in an atom. The MASS NUMBER is the sum of the protons and neutrons of the atom

Question 11

Question
Select all that is true
Answer
  • The massage table desks are very comfortable to put our feet through
  • Class 18D is the best
  • I can learn everything when I put my mind to it
  • The evolutionary history of cetaceans is thought to have occurred in the Indian subcontinent from even-toed ungulates 50 million years ago, over a period of at least 15 million years. Cetaceans are fully aquatic marine mammals belonging to the order Artiodactyla, and branched off from other artiodactyls around 50 mya (million years ago). Cetaceans are thought to have evolved during the Eocene or earlier, sharing a closest common ancestor with hippopotamuses.

Question 12

Question
The process of giving up or gaining an electron, resulting in an atom of positive or negative charge is called...
Answer
  • Onionization
  • Anionization
  • Ionization
  • Bunionization

Question 13

Question
Molecules and compounds are both groups of 2 or more atoms. What is the difference between them?
Answer
  • Molecules can consist of atoms of the same or different element. Compounds can only consist of atoms of different element.
  • Molecules can only consist of atoms of different element. Compounds can consist of atoms of the same or different element

Question 14

Question
The mass of an atom is measured by a standard unit called a dalton. A dalton is the equivalent of what?
Answer
  • is equivalent to one sixteenth of the weight of one atom of oxygen.
  • is equivalent to one sixteenth of the weight of one atom of carbon.
  • is equivalent to one sixteenth of the weight of one atom of nitrogen.
  • is equivalent to one sixteenth of the weight of one atom of hydrogen.

Question 15

Question
Two or more atoms interacting to produce a chemically stable arrangement of eight valence electrons for each atom is called:
Answer
  • Cation
  • The octet rule
  • The quartet rule

Question 16

Question
Select the types of chemical bonds
Answer
  • Ionic bond
  • Covalent bond
  • Hydrogen bond
  • James bond

Question 17

Question
A anion is a POSITIVELY charged ion.
Answer
  • True
  • False

Question 18

Question
What is an ionic bond?
Answer
  • When 2 atoms joining together share electrons
  • Positively and negatively charged ions attracted to one another forming a bond
  • The bond between Stephen and Kevin

Question 19

Question
Covalent bonds can form between atoms of the same AND different elements and are the most frequent chemical bonds in the body.
Answer
  • True
  • False

Question 20

Question
Select all that is true for polar covalent bonds
Answer
  • Electrons are not equally shared
  • Are hydrophobic
  • one part of the molecule is more negative than the other side of the molecule

Question 21

Question
Select all that is true for non polar covalent bonds
Answer
  • Are hydrophilic
  • Electrons are equally shared
  • No one part is distinctly positive or negative

Question 22

Question
Select all that is true about hydrogen bonds
Answer
  • The polar covalent bond between hydrogen and other atoms produces hydrogen bonds.
  • They are only about 5% as strong as covalent bonds.
  • Positive and negative charged ions are attracted to one another.
  • The hydrogen bond cannot bind atoms into molecules, but they can establish links between the molecules.

Question 23

Question
What kind of energy is STORED BY MATTER?
Answer
  • Potential energy
  • Kinetic energy
  • Chemical energy

Question 24

Question
Exergonic reactions release LESS energy than they absorb.
Answer
  • True
  • False

Question 25

Question
Anabolism is a synthesis reaction.
Answer
  • True
  • False

Question 26

Question
Redox reactions are coupled reactions of oxidation and reduction. What is a) oxidation and b) reduction?
Answer
  • Oxidation is the gain of an electron. Reduction is the loss of an electron.
  • Oxidation is the loss of an electron. Reduction is the gain of an electron

Question 27

Question
What 2 factors influence the speed of chemical reactions?
Answer
  • temperature of environment
  • amount of molecules
  • concentration

Question 28

Question
An exchange reaction consists of synthesis and decomposition reactions.
Answer
  • True
  • False

Question 29

Question
ATP is a molecule that stores energy from the exergonic breakdown of glucose.
Answer
  • True
  • False
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