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WorksheetsFoundations of Chemistry
Total questions: 79
Worksheet time: 40mins
Which of the following are matter? (Click all that are correct)
chocolate cake
an oak tree
sound
you and I
Anything that has mass and takes up space is...
overweight
matter
volume
density
True or False: Forces and energy are not matter.
True
False
True or False: Matter includes heat, sound, and light.
True
False
A small particle that is the building block of matter is called...
an element
a substance
a mixture
an atom
The center of an atom is the ______________ and is made up of proton and neutron particles.
hub
electron
nucleus
core
Proton particles have a ______________ charge.
positive
negative
neutral
lightning
Neutron particle have a _____________charge.
positive
negative
neutral
battery
Electrons are particle that orbit the nucleus in an area called the ___________________.
electron thingamagadget
electron orbit zone
electron modulator
electron cloud
Electrons have a ______________ charge.
positive
negative
neutral
funky
True or False: The diameter of a human hair is 1,000,000 times that of an atom.
True
False
The two main types of matter are...
substances and mixtures
elements and compounds
elements and mixtures
homogeneous mixtures and heterogeneous mixtures
Matter with a composition that is always the same is...
a substance
a mixture
The two types of SUBSTANCES are...
elements and compounds
compounds and mixtures
elements and mixtures
homogeneous mixtures and heterogeneous mixtures
Gold, iron, carbon, and oxygen are all...
mixtures
compounds
elements
expensive
Water, salt, and sugar are all... (check all that are true)
elements
compounds
mixtures
substances
Copper is an element because it is always made out of...
different atoms
the same type of atoms
the same combination of atoms
Sugar and Spice and everything nice
The chart that organizes elements is called...
The Element Chart
The Periodic Table
The Element Locator
The Atomic Number
Gold is atomic number 79. This means that gold...
has 79 neutrons
has 79 protons
is a metalloid
is really old
The atoms of most elements exist as...
pairs of atoms
groups of atoms
individual atoms
movie stars
Some elements like to hang out with themselves in pairs. These are called...
element buddies
elements squared
diatomic molecules
twins
A type of substance containing atoms of two or more different elements chemically bonded together is...
a compound
a heterogeneous mixture
a homogeneous mixture
a cluster
The combination of symbols and numbers that represents a compound is called...
a coefficient
a water molecule
a chemical equation
a chemical formula
The chemical formula for water is H2O. This tells me that water has _________ hydrogens for every _________ oxygens.
2 H for every 1 O
1 H for every 2 O
2 H for every 2 O
2 H for every 3 O
True or False: A compound often has different properties from the individual elements that compose it.
True
False
Matter that can vary in composition is called...
an element
a compound
a substance
a mixture
True or False: Mixtures combine chemically.
True
False
True or False: Mixtures can be separated by physical methods such as filtering.
True
False
Trail Mix is a good example of...
an element
a compound
a heterogeneous mixture
a homogeneous mixture
Jelly would be an example of...
an element
a compound
a heterogeneous mixture
a homogeneous mixture
A ___________________ is a type of mixture in which the individual substances are NOT evenly mixed.
element
compound
heterogeneous mixture
homogeneous mixture
Another name for a homogeneous mixture is...
an element
a compound
a substance
a solution
A ________________ is a type of mixture in which the individual substances are evenly mixed.
compound
solvent
heterogeneous mixture
homogeneous mixture
In a solution, the substance present in the largest amount is the...
solvent
solute
winner
substance
All other substances in a solution (other than the solvent) are called...
the solutes
the solutions
the atoms
it doesn't matter- they are unimportant
When solutes form a solution by mixing evenly in the solvent, we say that they...
are a couple
have dissolved
have disappeared
have lost mass
One of the main ways that compounds differ from solutions, is that compounds...
vary in composition
do not bond together
don't have a chemical formula
have a chemical formula
A characteristic of matter you can observe or measure WITHOUT changing the identity of the matter is...
a physical property
a chemical property
a physical change
a chemical change
Saying that matter is a solid, a liquid, or a gas is describing the state of matter. This is...
a physical property
a chemical property
a physical change
a chemical change
The state of matter depends on its...
size
shape
density
temperature
The theory that states that all matter is made up of tiny particles in constant motion is...
the Atomic Theory
the Tiny Particle Theory
the Particle Accelerator
the Kinetic Theory of Matter
What makes some matter a solid and other matter a liquid or gas? (check all that are correct)
the mass of the sample
how fast the particles are moving
how close the particles are
the shape of the object
This picture is showing particles that are vibrating, or in the _____________ state.
solid
liquid
gas
plasma
This picture is showing particles with lots of energy, moving quickly- or in the _____________ state.
solid
liquid
gas
Montana
This image is showing particles moving over and around each other- which would be in the ______________ state.
solid
liquid
gas
plasma
The amount of matter in an object is its...
mass
volume
density
size
True or False: Mass and volume are size-dependent properties.
True
False
True or False: Mass changes with location.
True
False
A measure of the pull of gravity on matter is...
mass
weight
both mass and weight
neither mass nor weight
The amount of space something takes up is...
mass
volume
density
weight
The temperature at which a substance changes from a solid to a liquid is its...
melting point
boiling point
solubility
electrical conductivity
The temperature at which a substance changes from a liquid to a gas is its...
melting point
boiling point
solubility
electrical conductivity
The mass per unit volume of a substance is its...
melting point
boiling point
density
solubility
A substance has a mass of 6g and a volume of 12mL. What is its density?
.5 g/mL
2 g/mL
18 g/mL
72 g/mL
The ability of one substance to dissolve in another is...
density
conductivity
solubility
melting point
A sample of wood has a mass of 4g and a volume of 12mL. What is the density of the wood?
3 g/mL
.33 g/mL
48 g/mL
not enough information
Conductivity is...
size dependent
size independent
Objects with a greater density ____________ in objects with less density.
float
sink
remain suspended
swim
A _________________ is a change in size, shape, form, or state of matter in which the matter’s identity stays the same.
physical property
physical change
chemical property
chemical change
Changes in shape and size are ________________________.
physical properties
physical changes
chemical properties
chemical changes
When thermal energy is added to a solid, the particles in the solid move faster and the temperature...
increases
decreases
remains constant
jumps around
When the particles in a solid are moving too fast for attractive forces to hold them tightly together, the solid has reached...
its melting point
its boiling point
sublimation
deposition
Dry ice, or frozen CO2 is an example of...
melting
sublimation
deposition
freezing
When thermal energy is removed from a gas, particles in the gas move slowly and temperature decreases. ________________ occurs as particles are pulled close.
deposition
sublimation
evaporation
condensation
True or False: The melting point and freezing point of water are the same.
True
False
The change from a gas directly to a solid, without first becoming a liquid is...
condensation
evaporation
deposition
sublimation
Frost is an example of...
condensation
evaporation
sublimation
deposition
During a physical or chemical change, the total mass before and after the change is the same. This is...
The Law of Motion
The Law of Gravity
The Law of Conservation of Mass
Fake news
A _________________ is a characteristic of matter that can only be observed as it changes to a different type of matter.
physical property
physical change
chemical property
chemical change
A change in matter in which the substances that make up the matter change into other substances is...
a physical property
a physical change
a chemical property
a chemical change
Which of the following are signs of chemical change? (Check all that apply)
formation of bubbles
a change in odor and/or color
a sudden change in temperature
formation of a solid
In the chemical equation above, CH4 and 2O2 are the...
reactants
products
True or False: The starting mass of the reactants equals the final mass of the products in a chemical reaction.
True
False
In the chemical equation above, the 2 in 2O2 is a(n)...
superscript
coefficient
multiplier
exponent
The rate of a chemical reaction could be increased by... (check all that apply)
raising the temperature
increasing the concentration of the substance
increasing the surface area
decreasing the surface area
Digesting a pizza would be...
a physical change
a chemical change
Rainwater reacts with layers of limestone forming cave formations. This is a...
physical change
chemical change
Metal being hammered into a sheet would be a...
physical change
chemical change
Which of the following are chemical properties? (Check all that apply)
combustibility
acidity
solubility
conductivity
