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

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angela le
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A&P - Class 18 The Chemical Level Quiz

Frage 1 von 29

1

What is matter?

Wähle eine der folgenden:

  • Anything that occupies space and has mass

  • The amount of electrons in a atom

  • The amount of matter in an object

Erklärung

Frage 2 von 29

1

What is mass?

Wähle eine der folgenden:

  • The space that an object occupies

  • The amount of matter in any object

  • The central act of divine worship in the Catholic Church

Erklärung

Frage 3 von 29

1

Of the ((92)) naturally occurring elements, how many are in the human body?

Wähle eine der folgenden:

  • 50

  • 26

  • 100

  • 25

Erklärung

Frage 4 von 29

1

Of the ((26)) elements in the human body, which are the ones that make up 96% of the body's mass?

Wähle eine der folgenden:

  • Carbon, Hydrogen, Onion, Nitrogen

  • Calcium, Helium, Oxygen, Nipple

  • Carbon, Hydrogen, Oxygen, Nitrogen

  • Carbon, Hydrogen, Oxycontin, Nitrous

Erklärung

Frage 5 von 29

1

3.6% of the body's mass contain 8 elements, and the remainder 0.4% are trace elements.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 6 von 29

1

What is a true statement?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 7 von 29

1

How can an element have the same atomic number but a different mass number?

Wähle eine der folgenden:

  • 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.

Erklärung

Frage 8 von 29

1

Isotopes are...

Wähle eine der folgenden:

  • 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

Erklärung

Frage 9 von 29

1

What are radioactive isotopes?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 10 von 29

1

What is the difference between MASS NUMBER and ATOMIC MASS? (tricky one)

Wähle eine der folgenden:

  • 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

Erklärung

Frage 11 von 29

1

Select all that is true

Wähle eine oder mehr der folgenden:

  • 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.

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Frage 12 von 29

1

The process of giving up or gaining an electron, resulting in an atom of positive or negative charge is called...

Wähle eine der folgenden:

  • Onionization

  • Anionization

  • Ionization

  • Bunionization

Erklärung

Frage 13 von 29

1

Molecules and compounds are both groups of 2 or more atoms. What is the difference between them?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 14 von 29

1

The mass of an atom is measured by a standard unit called a dalton. A dalton is the equivalent of what?

Wähle eine der folgenden:

  • 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.

Erklärung

Frage 15 von 29

1

Two or more atoms interacting to produce a chemically stable arrangement of eight valence electrons for each atom is called:

Wähle eine der folgenden:

  • Cation

  • The octet rule

  • The quartet rule

Erklärung

Frage 16 von 29

1

Select the types of chemical bonds

Wähle eine oder mehr der folgenden:

  • Ionic bond

  • Covalent bond

  • Hydrogen bond

  • James bond

Erklärung

Frage 17 von 29

1

A anion is a POSITIVELY charged ion.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 18 von 29

1

What is an ionic bond?

Wähle eine der folgenden:

  • 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

Erklärung

Frage 19 von 29

1

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

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 20 von 29

1

Select all that is true for polar covalent bonds

Wähle eine oder mehr der folgenden:

  • Electrons are not equally shared

  • Are hydrophobic

  • one part of the molecule is more negative than the other side of the molecule

Erklärung

Frage 21 von 29

1

Select all that is true for non polar covalent bonds

Wähle eine oder mehr der folgenden:

  • Are hydrophilic

  • Electrons are equally shared

  • No one part is distinctly positive or negative

Erklärung

Frage 22 von 29

1

Select all that is true about hydrogen bonds

Wähle eine oder mehr der folgenden:

  • 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.

Erklärung

Frage 23 von 29

1

What kind of energy is STORED BY MATTER?

Wähle eine der folgenden:

  • Potential energy

  • Kinetic energy

  • Chemical energy

Erklärung

Frage 24 von 29

1

Exergonic reactions release LESS energy than they absorb.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 25 von 29

1

Anabolism is a synthesis reaction.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 26 von 29

1

Redox reactions are coupled reactions of oxidation and reduction. What is a) oxidation and b) reduction?

Wähle eine oder mehr der folgenden:

  • 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

Erklärung

Frage 27 von 29

1

What 2 factors influence the speed of chemical reactions?

Wähle eine oder mehr der folgenden:

  • temperature of environment

  • amount of molecules

  • concentration

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Frage 28 von 29

1

An exchange reaction consists of synthesis and decomposition reactions.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

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Frage 29 von 29

1

ATP is a molecule that stores energy from the exergonic breakdown of glucose.

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

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