WorksheetsChemistry
Total questions: 27
Worksheet time: 3600secs
Name
Class
Date
1.
The most basic building block of matter (smallest part of an element) is called a(n) __________.
a)
Product
b)
Reactant
c)
Atom
d)
Molecule
2.
A(n) _____ is a unique substance that forms when two or more elements combine chemically.
a)
element
b)
compound
c)
mixture
d)
all of the above
3.
A compound always has the same ___________ in the same proportions (ratio).
a)
elements
b)
carbons
c)
mixtures
d)
ions
4.
A(n) _____ is the smallest particle of a compound that still has the compound’s properties.
a)
atom
b)
molecule
c)
element
d)
mixture
5.
A physical property can be observed by _________________.
a)
burning the substance
b)
changing the chemical identity of a substance
c)
using the senses
d)
placing the substance in acid
6.
Signs that a chemical change has occurred include
a)
a change in color
b)
the release of bubbles
c)
the production of an odor
d)
all of the above
7.
All the elements on the left side of the periodic table are called..
a)
Metals
b)
Metalloid
c)
Nonmetals
8.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
9.
A substance that is made up for one type of atom is called an:
a)
atom
b)
element
c)
compound
d)
mixture
10.
Which of these elements is a metal?
a)
argon
b)
carbon
c)
iron
d)
hydrogen
11.
All matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
12.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Right Side
13.
If I have a block of wood with a density of 0.5 g/cm3 and I cut it in half, the density of one of the halves of wood would now be. . .
a)
0.25 g/cm3
b)
1.0 g/cm3
c)
0.5 g/cm3
d)
5.0 g/cm3
14.
Which of the following represents a physical change?
a)
burning a candle
b)
lighting a match
c)
mixing a batch of lemonade
d)
baking a cake
15.
Which of the following is typically a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
16.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
17.
Nonmetals are located in what section of this periodic table?
a)
Blue
b)
Yellow
c)
Pink
18.
In the compound 2H2, the H stands for
a)
Helium
b)
Hydrogen
c)
Herculineum
19.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
20.
H2
a)
Element
b)
Compound
21.
CO2
a)
Element
b)
Compound
22.
CaCo3
a)
Element
b)
Compound
23.
H2O
a)
Element
b)
Compound
24.
Where are electrons of an atom found?
a)
Nucleus
b)
Electron Cloud
c)
Some are in the nucleus and some in the electron cloud.
d)
They are moving everywhere.
25.
Particles in an atom's nucleus that are neutral and have no charge are
a)
megatrons.
b)
electrons.
c)
neutrons.
d)
protons.
26.
A negatively charged particle that moves around the nucleus is a(n)
a)
proton
b)
neutron
c)
electron
d)
quark
27.
These are found on the Periodic Table.
a)
elements
b)
mixtures
c)
compounds
100 %
