Chemistry chap 2
Which action changes the identity of the substance breaking an ice cube or corroding iron
Corroding iron
Which state of matter takes both the shape and volume of its container
Gas
What happens to matter during a chemical reaction
Matter is neither created nor destroyed
Which of the following is a heterogeneous mixture of vinegar and water or oil and vinegar
Oil and vinegar
Which of the following is a heter mixture soil or salt water
Soil
Which state of matter has a definite shape and definite volume
Solid
The three states of matter are
Solid liquid and gas
An example of a homogeneous mixture is
Stainless steel
Which of the following is true for all chemical reactions the total mass of reactance equals the total mass of products or the total mass of the reactants increases
The total mass of reactance equals total mass of products
What is the melting point of water in degrees Celsius
0
What is the boiling point of water in degrees Celsius
100
In how many physical states does water commonly exist
3
How many grams of liquid water are produced when 60 g of ice melt
60 g
The first figure in a properly written chemical symbol always is
A capital letter
Which of the following is a chemical property freezing point or ability to react with oxygen
Ability to react with oxygen
Which of the following cannot be classified as a substance air or table salt
Air
Which of the following processes does not involve a change and chemical properties boiling or burning
Boiling
Some examples of physical properties of matter
Boiling point tearing up paper malleability and freezing point
Which of the following are considered physical properties of a substance color and older or melting and boiling points
Both
One paper turns yellow brown upon exposure to sunlight what type of change is likely taking place
Chemical change
What do chemical symbols and formulas represent respectively
Chemical symbols represent elements chemical formulas represent compounds
A substance that can be separated into two or more substances only by a chemical change is a mixture or compound
Compound
What is one difference between a mixture and a compound
Compounds are chemically combined and mixtures are physically combined
Golf ball has more mass than a tennis ball because it
Contains more matter
A CHEM change occurs when a piece of wood is split or decayed
Decayed
Which of the following does not involve a physical change mixing or decomposing
Decomposing
Separating a solid from a liquid by evaporating the liquid is called
Evaporation
Property is used to describe matter can be classified at
Extensive or intensive
What is the chemical symbol for iron
FE
Which of the following is not a physical change melting cheese or fermenting of cheese
Fermenting of
Which of the following does not indicate that a chemical change may have taken place a gas production or fracture formation
Fracture formation
What to type of mixtures are there
Homogeneous and heterogeneous
What distinguishes a substance from a mixture
Imgur is a physical combo and substance has fixed composition
Which of the following is not a physical property of water it is a colorless liquid or it is composed of hydrogen and oxygen
It is composed of hydrogen and oxygen
Which of the following is used for chemical symbols today letters or drawings
Letters
Which state of matter has a definite volume and takes the shape of its container
Liquid
A substance that forms a weber is generally in what physical state at room temp
Liquid or solid
An example of an extensive property of matter is hardness or mass
Mass
Which substance has the chemical symbol that is derived from the Latin name calcium or potassium
Potassium
Which of the following is not a physical change to a metal melting or rusting
Rusting
What is a homogeneous mixture or (example)
Salt water
Which of the following materials is a substance gasoline or silver
Silver
What is another name for homogeneous mixture's
Solutions
When an iron nail is ground into powder at mass
Stays the same
In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water what are the reactants
Sucrose
Which of the following is a chemical property of water at 4°C it's color or the ability to decompose into hydrogen and oxygen
The ability to decompose into hydrogen and oxygen
Which of the following indicates that a chemical change has happened during cooking the food darkens or bubbles form in boiled water
The food darkens
What is true about compounds
They are substances
