Test
A&P - Class 18 The Chemical Level Quiz
Preguntas del test (29)
1What is matter?
- AAnything that occupies space and has mass
- BThe amount of electrons in a atom
- CThe amount of matter in an object
2What is mass?
- AThe space that an object occupies
- BThe amount of matter in any object
- CThe central act of divine worship in the Catholic Church
3Of the ((92)) naturally occurring elements, how many are in the human body?
- A50
- B26
- C100
- D25
4Of the ((26)) elements in the human body, which are the ones that make up 96% of the body's mass?
- ACarbon, Hydrogen, Onion, Nitrogen
- BCalcium, Helium, Oxygen, Nipple
- CCarbon, Hydrogen, Oxygen, Nitrogen
- DCarbon, Hydrogen, Oxycontin, Nitrous
53.6% of the body's mass contain 8 elements, and the remainder 0.4% are trace elements.
- AVerdadero
- BFalso
6What is a true statement?
- ARadioactive isotopes are stable and bond to become more complex structures
- BThe chemical properties of an atom are a function of it's electrons.
- CElectrons have a positive charge
- DQueen Elizabeth VII of France was a weeaboo
7How can an element have the same atomic number but a different mass number?
- ABecause they have a different number of electrons.
- BBecause they have a different number of protons
- CBecause they have a different number of neutrons.
- DBecause they are radioactive.
8Isotopes are...
- AAtoms of the same elements with different mass number
- BAtoms of the same element with a negative or positive charge
- CAre a positively or negatively charged compound
- DUnstable and destructive
9What are radioactive isotopes?
- AAre unstable and decay into a simpler, more stable configuration. In the process, they can decay into a more simple element
- BAn electrically charged atom or group of atoms with an unpaired electron in its outermost shell.
- CA substance made of two or more atoms that can be broken down into the two or more different elements
- Dderp
10What is the difference between MASS NUMBER and ATOMIC MASS? (tricky one)
- AThe 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.
- BThe 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.
- CThe ATOMIC MASS is the number of protons in an atom. The MASS NUMBER is the sum of the protons and neutrons of the atom
11Select all that is true
- AThe massage table desks are very comfortable to put our feet through
- BClass 18D is the best
- CI can learn everything when I put my mind to it
- DThe 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.
12The process of giving up or gaining an electron, resulting in an atom of positive or negative charge is called...
- AOnionization
- BAnionization
- CIonization
- DBunionization
13Molecules and compounds are both groups of 2 or more atoms. What is the difference between them?
- AMolecules can consist of atoms of the same or different element. Compounds can only consist of atoms of different element.
- BMolecules can only consist of atoms of different element. Compounds can consist of atoms of the same or different element
14The mass of an atom is measured by a standard unit called a dalton. A dalton is the equivalent of what?
- Ais equivalent to one sixteenth of the weight of one atom of oxygen.
- Bis equivalent to one sixteenth of the weight of one atom of carbon.
- Cis equivalent to one sixteenth of the weight of one atom of nitrogen.
- Dis equivalent to one sixteenth of the weight of one atom of hydrogen.
15Two or more atoms interacting to produce a chemically stable arrangement of eight valence electrons for each atom is called:
- ACation
- BThe octet rule
- CThe quartet rule
16Select the types of chemical bonds
- AIonic bond
- BCovalent bond
- CHydrogen bond
- DJames bond
17A anion is a POSITIVELY charged ion.
- AVerdadero
- BFalso
18What is an ionic bond?
- AWhen 2 atoms joining together share electrons
- BPositively and negatively charged ions attracted to one another forming a bond
- CThe bond between Stephen and Kevin
19Covalent bonds can form between atoms of the same AND different elements and are the most frequent chemical bonds in the body.
- AVerdadero
- BFalso
20Select all that is true for polar covalent bonds
- AElectrons are not equally shared
- BAre hydrophobic
- Cone part of the molecule is more negative than the other side of the molecule
21Select all that is true for non polar covalent bonds
- AAre hydrophilic
- BElectrons are equally shared
- CNo one part is distinctly positive or negative
22Select all that is true about hydrogen bonds
- AThe polar covalent bond between hydrogen and other atoms produces hydrogen bonds.
- BThey are only about 5% as strong as covalent bonds.
- CPositive and negative charged ions are attracted to one another.
- DThe hydrogen bond cannot bind atoms into molecules, but they can establish links between the molecules.
23What kind of energy is STORED BY MATTER?
- APotential energy
- BKinetic energy
- CChemical energy
24Exergonic reactions release LESS energy than they absorb.
- AVerdadero
- BFalso
25Anabolism is a synthesis reaction.
- AVerdadero
- BFalso
26Redox reactions are coupled reactions of oxidation and reduction. What is a) oxidation and b) reduction?
- AOxidation is the gain of an electron. Reduction is the loss of an electron.
- BOxidation is the loss of an electron. Reduction is the gain of an electron
27What 2 factors influence the speed of chemical reactions?
- Atemperature of environment
- Bamount of molecules
- Cconcentration
28An exchange reaction consists of synthesis and decomposition reactions.
- AVerdadero
- BFalso
29ATP is a molecule that stores energy from the exergonic breakdown of glucose.
- AVerdadero
- BFalso
Información
- Descripción
- A quiz based on Dr. David's class 18 lecture
- Autor
- angela le
- Idioma
- English
- Visitas
- 109
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test