6431889
Descrição
Quiz por Afia Oduro-Manu, atualizado more than 1 year ago
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Criado por Afia Oduro-Manu
aproximadamente 8 anos atrás
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Questão 1
Questão
The basic unit of matter is called an [blank_start]atom[blank_end]
Responda
-
atom
Questão 2
Questão
What subatomic particles make up atoms?
Responda
-
Isotopes
-
Protons
-
Particles
-
Neutrons
-
Molecules
-
Electrons
Questão 3
Questão
PROTONS determine an element's...
Responda
-
Atomic mass
-
Atomic number
-
Number on the periodic table
-
Atomic weight
-
Nucleus's Charge
Questão 4
Questão
Isotopes are...
Responda
-
Atoms of a DIFFERENT element that have the SAME number of neutrons they contain
-
ATOMS of a DIFFERENT element that have DIFFERENT number of neutrons
-
Atoms of the SAME element that DIFFER in the number of neutrons the contain
-
Atoms of the SAME element that have the SAME number of neutrons
Questão 5
Questão
Where in an atom do PROTONS and NEUTRONS lie?
Responda
-
Orbit
-
Nucleus
-
Outside of the atom's orbit
-
Close to the circumference of the nuclues
Questão 6
Questão
All atoms of the same element have the same number of...
Responda
-
Electrons
-
Neutrons
-
Protons
-
Molecules
Questão 7
Questão
What subatomic particle determines what the element is?
Responda
-
Protons
-
Neutrons
-
Electrons
-
Isotopes
Questão 8
Questão
ELECTRONS orbit around the nucleus of an atom.
Responda
- True
- False
Questão 9
Questão
What is the weakest type of chemical bond?
Responda
-
Covalent
-
Hydrogen
-
Ionic
Questão 10
Questão
What element forms chemical bonds?
Responda
-
Oxygen
-
Carbon
-
Hydrogen
-
Helium
Questão 11
Questão
COVALENT BONDS are formed when...
Responda
-
Electrons in an atom are transferred to another atom
-
Electrons in an atom are shared
-
Electrons in an atom bond with the atom's neutrons
-
Electrons travel between the nuclei of both atoms
Questão 12
Questão
IONIC BONDS are formed when...
Responda
-
Electrons are “stolen” from one atom and taken to the next
-
Electrons are shared between atoms
-
Some of the atom's electrons are transferred to another atom
-
Another atom destroys its own protons to weaken its bond
Questão 13
Questão
The number of NEUTRONS and ELECTRONS in an atom are usually always the same.
Responda
- True
- False
Questão 14
Questão
How many types of substances make a CHEMICAL ELEMENT?
Responda
-
1
-
2
-
3
-
4
Questão 15
Questão
Why are atoms NEUTRAL despite having charged particles?
Responda
-
Same amount of PROTONS and ELECTRONS balance out the charge in an atom
-
Same amount of PROTONS and NEUTRONS balance out the charge in an atom
-
Different amounts of PROTONS and ELECTRONS maintain stability in an atom
-
Different amounts of ELECTRONS and NEUTRONS balance out the charges in an atom
Questão 16
Questão
How are isotopes identified?
Responda
-
Atomic number
-
Atomic mass
-
Atomic balance
-
Atomic neutrality
Questão 17
Questão
Atomic [blank_start]mass[blank_end] is the [blank_start]weighted[blank_end] average of the masses of an element's [blank_start]isotopes[blank_end]
Responda
-
mass
-
number
-
weight
-
measured
-
weighted
-
divided
-
electrons
-
neutrons
-
protons
-
isotopes
Questão 18
Questão
WEIGHTED in Biology/Chemistry/Physics means the [blank_start]abundance[blank_end] of each [blank_start]isotope[blank_end] in [blank_start]nature[blank_end] is considered when the average is calculated
Responda
-
abundance
-
lack
-
isotope
-
Electron
-
Proton
-
Neutron
-
nature
-
similarities
-
differences
Questão 19
Questão
Why do all isotopes of an element have the same chemical properties?
Responda
-
Because they have DIFFERENT numbers of PROTONS
-
Because they have ALMOST EQUAL amounts of MOLECULES
-
Because they have DIFFERENT numbers of NEUTRONS
-
Because they SHARE the same number of ELECTRONS
Questão 20
Questão
A chemical compound is formed when [blank_start]2+[blank_end] elements are combined chemically
Responda
-
0-1
-
1-2
-
2+
-
2-3
Questão 21
Questão
The formula for table salt is [blank_start]NaCl[blank_end]
Responda
-
SmCl
-
SoCl
-
NaCl
-
SiCl
Questão 22
Questão
Sodium is a [blank_start]metal[blank_end] and chloride is a [blank_start]gas[blank_end].
Responda
-
gas
-
metal
-
gas
-
metal
Questão 23
Questão
An ion is an atom that is...
Responda
-
Negatively charged
-
Positively charged
-
Neutrally charged
Questão 24
Questão
An atom that loses electrons has a negative charge.
Responda
- True
- False
Questão 25
Questão
A [blank_start]triple[blank_end] [blank_start]covalent[blank_end] bond is formed when [blank_start]six[blank_end] electrons are shared.
Responda
-
covalent
-
ionic
-
single
-
triple
-
double
-
two
-
six
-
four
Questão 26
Questão
In a [blank_start]water[blank_end] molecule, each [blank_start]hydrogen[blank_end] atom forms a [blank_start]single[blank_end] covalent bond.
Responda
-
hydrogen
-
water
-
hydrogen
-
carbon
-
single
-
double
Questão 27
Questão
The slight attractions that develop between oppositely charged region of nearby particles are called
[blank_start]Van der Waals forces[blank_end]
Responda
-
Van der Waals forces
Questão 28
Questão
Acidic solutions are [blank_start]compounds[blank_end] that form [blank_start]H+ ions[blank_end] in solution.
Responda
-
compounds
-
H+ ions
Questão 29
Questão
Water molecules are polar because of [blank_start]uneven[blank_end] distribution [blank_start]between[blank_end] their two poles (the [blank_start]negative[blank_end] attracts [blank_start]oxygen[blank_end] and the positive attracts [blank_start]hydrogen[blank_end] atoms).
Responda
-
uneven
-
equal
-
positive
-
negative
-
oxygen
-
hydrogen
-
oxygen
-
hydrogen
-
between
-
outside of
-
around
Questão 30
Questão
Substances that combine physically form [blank_start]mixtures[blank_end], while substances that combine chemically form [blank_start]compounds[blank_end].
Responda
-
mixtures
-
compounds
Questão 31
Questão
Acidic solutions have lesser concentrations of H+ ions than pure water.
Responda
- True
- False
Questão 32
Questão
Basic solutions produce...
Responda
-
OH- (hydroxide) ions
-
Small amounts of H+ ions
-
O- ions
-
HO- ions
Questão 33
Questão
[blank_start]Acidic[blank_end] solutions have pH levels below [blank_start]7[blank_end], and even from [blank_start]1[blank_end] to [blank_start]3[blank_end].
Responda
-
Acidic
-
7
-
1
-
3
Questão 34
Questão
The polar, neutral WATER molecule has an equal amount of protons and electrons, [blank_start]10[blank_end] each.
Responda
-
10
Questão 35
Questão
The attraction between the hydrogen atom on [blank_start]water[blank_end] molecule and the [blank_start]oxygen[blank_end] atom on another water molecule is an example.
Responda
-
water
-
oxygen
Questão 36
Questão
The two forms of attraction are [blank_start]co[blank_end]hesion and [blank_start]ad[blank_end]hesion.
Responda
-
co
-
ad
Questão 37
Questão
An evenly (molecule) mixed mixture is called a [blank_start]solution[blank_end].
Responda
-
solution
Questão 38
Questão
The greatest solvent in the world is [blank_start]water[blank_end].
Responda
-
water
Questão 39
Questão
Suspension is mixtures of...
Responda
-
Water and dissolved material
-
Water and undissolved material
-
Water and partly dissolved material
Questão 40
Questão
The solute the substance that is dissolved in the solution.
Responda
- True
- False
Questão 41
Questão
The pH scale indicates the concentration of [blank_start]H+ ions[blank_end] in a [blank_start]solution[blank_end].
Responda
-
solution
-
H+ ions
Questão 42
Questão
A solution with a pH of 4 has [blank_start]40[blank_end] [blank_start]H+[blank_end] [blank_start]ions[blank_end], while one with a pH of 5 has [blank_start]50[blank_end],
Responda
-
40
-
50
-
H+
-
ions
Questão 43
Questão
Basic solutions have pH levels [blank_start]high[blank_end]er than [blank_start]7[blank_end], and especially from [blank_start]11[blank_end] to [blank_start]14[blank_end].
Responda
-
7
-
11
-
14
-
high
Questão 44
Questão
Buffers are [blank_start]weak[blank_end] [blank_start]acids/bases[blank_end] that can react with [blank_start]strong acids[blank_end] to prevent [blank_start]sharp[blank_end], [blank_start]sudden[blank_end] changes in pH.
Responda
-
weak
-
sharp
-
sudden
-
strong acids
-
acids/bases
Questão 45
Questão
Carbohydrates contain the following atoms...
Responda
-
Oxygen
-
Helium
-
Carbon
-
Hydrogen
Questão 46
Questão
Single sugar molecules are also called [blank_start]Monosaccharides[blank_end]
Responda
-
Monosaccharides
Questão 47
Questão
Some monosaccarides are...
Responda
-
Glucose
-
Galactose
-
Fructose
-
Glycogen
Questão 48
Questão
Some polysaccarides are...
Responda
-
Glucose
-
Glycogen
-
Starch
-
Fructose
-
Cellulose
Questão 49
Questão
What are the main functions of carbohydrates?
Responda
-
As an energy suppliant
-
To store starch
-
For strength and rigidity in an animal/plant
Questão 50
Questão
What atoms are lipids made of?
Responda
-
Helium
-
Hydrogen
-
Carbon
-
Oxygen
Questão 51
Questão
THe three categories of lipids are...
Responda
-
Saturated
-
Unsaturated
-
Monosaturated
-
Polyunsaturated
Questão 52
Questão
When glycerol is combined with [blank_start]fatty acids[blank_end] a lipid is formed.
Responda
-
fatty acids
Questão 53
Questão
SATURATED LIPIDS contain one carbon bond, UNSATURATED LIPIDS contain 1+ carbon bonds, while POLYUNSATURATED LIPIDS contain 2+ carbon bonds
Responda
- True
- False
Questão 54
Questão
Nucleic acids contain what type of atoms
Responda
-
Hydrogen
-
Helium
-
Carbon Dioxide
-
Carbon
-
Oxygen
-
Nitrogen
-
Phosporous
Questão 55
Questão
[blank_start]Nucleotides[blank_end] are the monomers of nucleic acids.
Responda
-
Nucleotides
Questão 56
Questão
Nucleic acids are composed of a [blank_start]5-carbon[blank_end] sugar, a [blank_start]phosphate group[blank_end] [blank_start](-PO4)[blank_end], and a [blank_start]nitrogenous[blank_end] base.
Responda
-
phosphate group
-
(-PO4)
-
nitrogenous
-
5-carbon
Questão 57
Questão
Nucleic acids keep genetic information and transport energy.
Responda
- True
- False
Questão 58
Questão
RNA ([blank_start]Ribonucleic[blank_end] acid) is made out of [blank_start]ribose[blank_end] sugar and DNA ([blank_start]Deoxyribonucleic[blank_end] acid) is made out of [blank_start]deoxyribose[blank_end] sugar.
Responda
-
deoxyribose
-
Deoxyribonucleic
-
ribose
-
Ribonucleic
Questão 59
Questão
Proteins are composed of the atoms...
Responda
-
Nitrogen
-
Helium
-
Carbon
-
Phosphorous
-
Hydrogen
-
Oxygen
Questão 60
Questão
The monomers of protein are...
Responda
-
Carbon bonds
-
Amino acids
-
Protein
-
Protein acids
Questão 61
Questão
Proteins
1)Control the rate of reactions
2)Regulate cell processes
3)Form cell membranes
4)Transport substances in or out of cells
5)Work with the immune system
Responda
- True
- False
Questão 62
Questão
Valence electrons have [blank_start]stable[blank_end] or [blank_start]non-reactive[blank_end] [blank_start]shells[blank_end] and determine [blank_start]reactivity[blank_end] on the [blank_start]outer ring[blank_end] of the atom.
Responda
-
stable
-
non-reactive
-
shells
-
reactivity
-
outer ring
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