Chemical Unit Study Questions
Chemical
A substances___________ properties predict how it will react with other substances
Density
All of the following are a state of matter EXEPT
Burning
All of the following are examples of physical changes EXCEPT
Electrical conductivity
All of the following are the result of a chemical reaction except
Flammability
Dry wood has a high __________ which is the ability to burn easily
Boiling
The ___________ point is the temperature when a liquid turns to a gas
Solubility
The ability for a material to mix evenly with another material is its _____________
The abolity to be crushed
The following are examples of chemical properties EXCEPT
Ability to react with oxygen
The following are examples of physical properties EXCEPT
Physical property
The melting point of silver is a ________
Conductivity
The physical properties that determines how easily heat electricity pass through a material is ____________.
Water vapor
Where a sugar and water solution is evaporated, the sugar left behind had less mass than the original solution. The missing mass is found in ______________
The Total mass before a chemical reaction is the same as the total mass after the reaction
Which explains the law of conservation of mass?
Separation by boiling point
Which method of separation can be used to separate a solution of water and salt
Baking soda in water
Which of the following is an example of a chemical change
Burning paper
Which of the following is an example of a chemical change
Lighting a match
Which of the following is an example of a chemical reaction?
Displacement
Which process can be used to find the volume of an irregular-shaped solid?
Gas
Which state of matter has a very weak attractive force between particles
Soluble in water
You can separate sugar from sand because sugar is __________ and sand is not.
Density
___________ is a physical property
Mass and volume
Density depends on __________\
Physical properties
Density is an example of a__________.
Width
*length x _____________x hight = volume
Chemical changes colored it reddish brown
A bicycle was left outside for several days. What most likely happened to the bicycle
Chemical
A change in color is evidence of a __________ change
Chemical property
A characteristic of matter that allows it to change to something new is a ________
Ability to react with oxygen
An example of a chemical property is
Is the same as
An example of a chemical reaction ___________ the mass of the reactants.
Physical
Color is a ________ property
M/V
D=
Burn it, pour acid on it
Given a piece of paper, how can you cause a chemical change
Crumple it, tear it
Given a piece of paper, how can you cause a physical change
Baking soda chemically changes when added to vinegar
In an experiment, a student adds baking soda to vinegar and observes that a large amount of gaseous carbon dioxide is released l. What is the scientific reason for the change?
Yes, some chemical changes do not cause a noticeable change
Is it possible to not realize that a chemical change has occurred? Explain
Physical
Mass is a _________ property
Weight
Mass is the amount of matter in an object _______ is the gravitational pull on the mass of an object
Light
Photosynthesis is a chemical reaction which uses _______ as a form of energy
Physical
Scratching a silver teaspoon is a __________change
Physical
Sorting and separating are ways to classify matter using _______________properties
A new substance with new properties formed
The rusting of iron is not a physical properties because
Temperature
The state of matter of a material depends on its ___________.
Boiling
The temperature at which a liquid becomes a gas is the __________ point
Chemical property
Titanium reacts with oxygen than most metals do. This is a ________
Iron reacts with oxygen in the air, creating iron oxide
What happened to an iron nail when it rusts
Density is the amount of mass in a given volume
What is density?
42.2
What is the volume of a object with a night of 2.3 cm, a width of 2.4 cm, a mass of 17.5 grams, and a length of 20cm
Solid and liquid
What two states of matter are pictured in the image below?
Chemical change
When a peeled banana turns black, it is a_________.