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WorksheetsCP Biology Chapter 6.1-6.3
Total questions: 47
Worksheet time: 16mins
Name
Class
Date
1.
The subatomic particle with a neutral charge is:
a)
protons
b)
electrons
c)
neutrons
d)
cloud
2.
Which two subatomic particles are found in the NUCLEUS of at atom?
a)
protons & nuetrons
b)
protons & electrons
c)
neutrons & electrons
d)
electrons & protons
3.
What type of subatomic particles are found in the cloud?
a)
neutrons
b)
electrons
c)
protons
d)
reactions
4.
Ions are:
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
5.
What is the relationship between electrons in a covalent bond?
a)
Share electrons
b)
Transfer electrons
6.
An electron has what kind of charge?
a)
no charge
b)
positive
c)
negative
d)
it depends
7.
a proton has what charge?
a)
positive
b)
negative
c)
no charge
d)
it depends
8.
An atom that has gained or lost electrons is called ...
a)
a winner
b)
an isotope
c)
an ion
d)
a loser
9.
Atoms that lose electrons become...
a)
negatively charged
b)
postively charged
c)
remain neutral, no charge
d)
losers
10.
Atoms that gain electrons become...
a)
negatively charged
b)
positively charged
c)
remain neutrally charged
d)
21
11.
The smallest identifiable unit of an element is a(n)__________.
a)
electron
b)
atom
c)
compound
d)
mixture
12.
This is an example of a:
a)
Compound
b)
Element
c)
Diatomic molecule
d)
Mixture of compounds
13.
The following is a:
a)
Compound
b)
Element
c)
Mixture of elements
d)
Diatomic molecule
14.
In a mixture, the substances combined (can/cannot) be separated by physical processes.
a)
Can
b)
Cannot
15.
Spaghetti and meatballs is an example of a:
a)
compound
b)
element
c)
mixture
d)
molecule
16.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
17.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
18.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
19.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
20.
What kind of bond forms when one kind of atom gives electrons to another kind of atom?
a)
Chemical bon
b)
Ionic bond
c)
Covalent bond
d)
Electron bond
21.
A water molecule (H2O) is an example of a covalent bond becuase ____.
a)
The hydrogen gains an electron an the oxygen loses one.
b)
Electrons are shared btween the hydrogen and oxygen
c)
They do not form a eutral goup of atoms.
d)
Hydrogen and oxygen are both negative ions.
22.
What type of bond is this?
a)
ionic
b)
covalent
23.
What is a solute?
a)
The substance that does the dissolving in a solution.
b)
The substance that is dissolved into the solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
24.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
25.
Which is an example of a solute?
a)
Egg whites
b)
Sugar
c)
Water
d)
Acetone
26.
Which is an example of a solute?
a)
Salt
b)
Egg whites
c)
Water
d)
Sugar
27.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
d)
water
28.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 5
29.
Which of the following would not be used to indicate whether a solution was an acid or a base?
a)
pH Paper
b)
litmus paper
c)
Orange Juice
d)
Universal Indicator
30.
What pH represents a basic solution
a)
7
b)
9
c)
4
d)
16
31.
Turns litmus blue.
a)
Acids
b)
Bases
c)
Salts
d)
All
32.
Changes the color of indicators.
a)
Acids
b)
Bases
c)
All
33.
pH less than 7.
a)
Acids
b)
Bases
c)
All
34.
What is a solution that has an excess of hydroxide (OH-) ions?
a)
pH
b)
acid
c)
neutral
d)
base
35.
The pH scale measures ____ and ____
a)
acidity and basic
b)
the temperature
c)
how fun a chemistry quiz is
d)
none of the above
36.
A sample of pure water is neutral because it contains
a)
some H+ ions.
b)
equal amounts of hydroxide and hydrogen ions.
c)
some hydroxide ions.
d)
only H2O molecules.
37.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
38.
Water is a universal solvent
a)
true
b)
false
39.
What are two parts that make up a solution?
a)
solvent and solute
b)
concentration and dilation
c)
non polar and polar
d)
solid, liquid, and gaseous
40.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
41.
A water strider can skate along the top of a pond because:
a)
covalent bonds result in water cohesion
b)
hydrogen bonds result in water cohesion (surface tension)
c)
water striders have adapted to take advantage of water cohesion
d)
low surface tension of water
42.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
43.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
44.
Water’s attraction to other water molecules
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
45.
Molecules with unevenly distributed electrically charged areas are called _______________.
a)
magnets
b)
polar molecules
c)
solutions
d)
electrical molecules
46.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
47.
Which property of water will cause water to spread out on glass?
a)
Adhesion
b)
Cohesion
c)
Ability to dissolve substances
d)
High specific heat
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