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WorksheetsBasic Chem
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
Changing this changes the element name
a)
protons
b)
neutrons
c)
electrons
2.
Changing this changes the weight of an atom
a)
protons
b)
neutrons
c)
electrons
d)
protons and neutrons
3.
Changing this may cause an isotope
a)
protons
b)
neutrons and electrons
c)
neutrons
d)
electrons
4.
Changing this causes ions to form
a)
electrons
b)
protons
c)
neutrons
5.
What is equal in a non-ion element
a)
protons and electrons
b)
neutrons and protons
c)
neutrons and electrons
d)
protons, neutrons and electrons
6.
Sharing electrons in a chemical bond
a)
ionic bond
b)
covalent bond
7.
molecules are made from
a)
ionic bonds
b)
covalent bonds
8.
water is made from
a)
ionic bonds
b)
covalent bonds
9.
When electrons are shared in a covalent bond, but not equally, the molecule is said to be
a)
ionic
b)
polar
10.
Polar molecules can stick to each other through
a)
ionic bonding
b)
hydrogen bonding
c)
covalent bonding
11.
Hydrogen bonding between two identical molecules
a)
adhesion
b)
cohesion
12.
Hydrogen bonding between two different molecules (like water a and cellulose of grass).
a)
cohesion
b)
adhesion
13.
Why is water crawling up the tissue paper?
a)
capillary action
b)
adhesion only
c)
cohesion only
14.
Acids have
a)
a high PH
b)
a low PH
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