Types of matter
How many stars of matter is there?
4(solid,liguid,gas,and plasma)
What is pure substance?
A kind of matter that cannot be seperated into other kinds of matter in any physical way.
What is a mixture?
A compound made up of two or more chemical components that are not chemically linked.
What is an element?
An element is a pure substance that consists of only one type of atom.
What is a compound?
A chemical compound is a chemical substance composed of identical molecules containing atoms from more than one chemical element held together by chemical bonds.
Which type of matter is commonly found in the universe.but not commonly found on earth?
Plasma
identify density
The mass of a sample divided by its volume
Name 3 examples of mixtures.
Milk,salt and water,and sand and water
Give 2 examples of compounds
Toothpaste and sugar
In a lab experiment,a student notices that frost forms on the outside of a cold breaker.What process is responsible for this observation?
Deposition
What are 3 examples of pure substances?
Gold,Copper,and oxygen
In what type of mixture are the substances evenly distributed throughout the mixture?
A.Homogenous
B.Heterogeneous
C.All types of mixtures
A.Homogenous
Identify nonmetals
An element or substance that doesn't have metal.
Whats the difference between elements and compound?
Elements are pure substances which are composed of only one type of atom.Compound are substances which are formed by two or more different types of elements.
Which substance commonly exists on earth and in all three states of matter?
Water
Which of the following families contains elements that will not form compounds?
A.Metaloids
B.Strong medals
C.Halogens
D.Noble gases
D-Noble gases
What are two main types of mixtures?
Homogenous and heterogenous
What is the total number of moles of hydrogen atoms contained in one mole of(NH4)2C2O2?
A.6
B.2
C.8
D.4
C-8
What is the difference between Organic and nonorganic compounds?
Organic compounds are made of living things,Nonorganic compounds are found in nature
Which best describes why a liquid needs a container when a solid does not?
Solids have definite shapes,and liquids fill their containers
How do pure substances differ from mixtures?
Mixtures contain two or more types of particles,while a pure substance has only one type of particle throughout.
Can mixtures be separated into their components?
Yes mixtures can be separated by physical methods
Which elements is found in potassium chlorate and zinc nitrate?
Oxygen
Give 3 non examples of compounds
Sulfur,Nitrogen gas,and hydrogen