(MIDTERM) All Quiz questions (7-14) Flashcards
Anything that has mass and takes up space can be considered as
a) matter
b) substances
c) density
d) mixtures
a) matter
Also known as the building blocks of matter, these tiny particles are 1,000,000 times smaller than the width of human hair.
a) electrons
b) neutrons
c) atoms
d) protons
c) atoms
If you were to investigate the nucleus of an atom, you would likely find
a) a cloud of electrons
b) neutrons and protons
c) neutrons only
d) neutrons and electrons
b) neutrons and protons
Matter with a composition that is always the same would be expected in a
a) substance
b) heterogenous mixture
c) homogeneous mixture
d) solute
a) substance
Iron, Calcium, and Carbon are all examples of
a) elements
b) solutions
c) mixtures
d) compounds
a) elements
What would you call H20 and C02
a) elements
b) compounds
c) mixtures
d) Hydrogen Peroxide and Carbon Dioxide
b) compounds
In order for a substance, containing two or more atoms of different elements, to be considered a compound, the different atoms must be
a) physically combined
b) the same size
c) neutral
d) chemically combined
d) chemically combined
Carbon -14 is a great example of an
a) isotope
b) element
c) compound
d) large atom
a) isotope
H20 and C02 are both examples of a
a) chemical formula
b) element
c) mixtures
d) solution
a) chemical formula
A ceasar salad is a great example of a
a) homogeneous mixture
b) compound
c) solution
d) heterogenous mixture
d) heterogenous mixture
When you mix a powdered drink like Gatorade with water, the mix is referred to as the
a) compound
b) solvent
c) solution
d) solute
d) solute
What is the ability of an object to be dissolved
a) heatability
b) conductivity
c) magnetism
d) solubility
d) solubility
Which of the following best classifies physical properties
a) size dependant and size independent
b) mass and neutrons
c) solutes
d) length dependant and length independant
a) size dependant and size independent
What formula do we use to determine density
a) volume/mass
b) weight/volume
c) mass/volume
d) mass x volume
c) mass/volume
If a substance has a density of 5g/mL and a mass of 50g, what would the volume need to be?
10mL
What is another word for homogeneous mixture?
solution
What would be a good example of a physical change
a) ice melting into a pool of water
b) roasting marshmallows
c) silver tarnishing
d) a change in shape
a) ice melting into a pool of water
When you have a physical change you will never end up with
a) a change in state
b) a change in size
c) a new substance
d) a change in shape
c) a new substance
Adding thermal energy to matter may cause
a) particles to freeze
b) particles to remain the same
c) a new substance to form
d) the state to change
d) the state to change
The boiling point of matter is the point at which
a) a solid becomes a liquid
b) a liquid becomes a solid
c) a liquid becomes a gas
d) a solid becomes a gas
c) a liquid becomes a gas
What do we call it when a gas becomes a liquid
a) condensation
b) evaporation
c) sublimation
d) boiling
a) condensation
Freezing and Melting are reverse processes, but they
a) occur at different temperatures
b) occur at the same temperature
c) never require a change in energy
d) never happen to matter
b) occur at the same temperature
If a sample of water has a mass of 100g and you add 10g of solute, you will have a final solution with a total mass of 110g. This is because of
a) the law of dissolving
b) the law of solubility
c) the law of conservation of mass
d) the law of states of matter
c) the law of conservation of mass
Which never changes during a physical change
a) states of matter
b) volume
c) temperature
d) total mass
d) total mass
What is a good example of a chemical property
a) ability to burn
b) ability to change states
c) ability to change size
d) ability to freeze
a) ability to burn
When a small branch of a tree decomposes in the forest. it is an example of
a) a change of state
b) a chemical change
c) a physical change
d) a physical property
b) a chemical change
Which one of these is proof of a chemical change
a) bubbles
b) the formation of the same substance
c) the formation of a new substance
d) added energy
c) the formation of a new substance
When atoms collide and rearrange and bond into new combinations, you have
a) a physical change
b) a decrease in energy
c) deposition
d) a new substance
d) a new substance
What do we call the substances on the left side of a chemical equation, before the reaction occurs
a) products
b) chemical symbols
c) the yield
d) reactants
d) reactants
What do we call the new substances formed after a chemical reaction
a) the yield
b) reactants
c) products
d) chemical symbols
c) products
The arrow in a chemical formula is read as
a) reactant
b) product
c) a symbol
d) yields
d) yields
Higher temperatures and concentrations usually increase the rate of a reaction, but you can increase the rate of a reaction by increasing?
surface area
In our lab, we made sure to fill the graduated cylinder to the 170mL mark. The water level in that cylinder is determined by the ____________ line.
meniscus
In our lab on density, we were able to determine the volume of an irregular shape (the bolt) by measuring the __________ of water
displacement
Higher temperatures and surface area usually increase the rate of a reaction, but you can increase the rate of a reaction by increasing the?
concentration
Physical properties can be either ________ or _________.
size dependant or size independent
what is the formula for density?
d = m/v
If a substance had a mass of 33 g and a volume of 11mL, what would the density of that substance be?
3mL
What is another way to represent volume besides using the mL measurement?
a) gallons
b) g
c) cm3
d) g/mL
c) cm3
Watermelon sales increase during the months of May, June, and July. Drownings also increase during the same three months, consistently. You could say…
a) they are negatively correlated
b) they have a casual relationship
c) the watermelon sales are making people drown
d) they are positively correlated
d) they are positively correlated
when you mix table salt with water, the salt is the
a) solvent
b) solution
c) solute
d) compound
c) solute
Matter that has a definite shape and definite volume would most likely be
a) a solid
b) a liquid
c) a gas
d) a plasma
a) a solid
A diamond and a chunk of coal are both made up of carbon atoms, the difference is in how those carbon atoms are arranged. A diamond has what kind of structure
a) expensive
b) crystalline
c) amorphous
d) hard
b) crystalline
Matter that has a definite volume but no definite shape would be
a) a solid
b) a liquid
c) a gas
d) a plasma
b) a liquid
What effect does raising the temperature of honey have on its viscosity
a) reduces it
b) no effect
c) increases it
d) eliminates it
a) reduces it
In order for water to super cool, it requires
a) pure water with limited nucleation sites
b) tap water
c) sublimation
d) condensation
a) pure water with limited nucleation sites
Matter that has no definite shape or definite volume
a) a solid
b) a liquid
c) a gas
d) a plasma
c) a gas
The gas state of water or gasoline is called a
a) vapor
b) gas
c) mixture
d) solution
a) vapor
All particles that make up matter have motion and therefore they generate
a) kinetic energy
b) atoms
c) fusion
d) compounds
a) kinetic energy
How does a solid become a gas without being a liquid
a) deposition
b) sublimation
c) evaporation
d) condensation
b) sublimation
How does a gas become a solid without becoming a liquid
a) deposition
b) sublimation
c) evaporation
d) condensation
a) deposition
What process is the opposite of evaporation
a) deposition
b) sublimation
c) condensation
d) expansion
c) condensation
The amount of force applied per unit area is called
a) conservation of energy
b) volume
c) molecular theory
d) pressure
d) pressure