Chapter 1 Practice Test Flashcards
(17 cards)
Matter that is free to move and fills its available volume is in the _______ state.
Liquid
Solid
Gaseous
Elemental
Gases
A good definition of a chemical is any substance that….
Causes erosion
Has a definite composition
Is hazardous
Is used in industrial processes
Has a definite composition
The state of matter that a material is most likely to resist compression is the
Solid state
Liquid state
Gaseous state
Vaporous state
Solid state
A chemical change occurs when
Dissolved minerals solidify to form a crystal
Ethanol is purified through distillation
Salt deposits form from evaporated sea water
A leaf changes color
A leaf changes color
Which of the following shows a physical change occurring
A peach spoils
A copper bowl tarnishes
A piece of jewelry turns your skin green
A hot glue gun melts a glue stick
A hot glue gun melts a glue stick
Mercury 11 oxide decomposes into mercury and oxygen. In this reaction, mercury is a
Reactant
Product
A foul smelling substance
Sometime a reactant and sometime a product
Product
Which of the following observations does not that a chemical change has occurred
Change of state
Formation of a precipitate
Absorption of energy
Release of a gas
Change of state
Review how to cancel out unit of measures
Practice te
The SI base unit for length is
Meter
Review how to make conversions with a conversion factor
Do it
To convert from ml to l, what conversion factor is used?
1L
——-
1000 ml
Which of the following statements about density is true?
Density depends on the size of the sample
Density is a chemical property
Density is a physical property
Density depends on location
Density is a physical property
Set this equation up, aluminum has a mass of 20.6 g and a volume of 7.63cm3, find density
D = 20.6
- ------
7. 63
Which of the following statement is false
Nitrogen is an element that exists as a diatomic gas
Atoms are elements combined in a definite ratio
Water is a molecule
Helium is an element
Atoms are elements combined in definite ratio
Which of the following mixtures is homogeneous
Iced tea
A cheeseburger
Pizza
Vegetable soup
Iced tea
What type of matter is formed when two or more types of elements chemically join together?
Compound
Review table for SI
Like the 100
10000 stuff
