What are the four states of matter and give an example of each?
What is solid-rock, liquid-water, gas-water vapor, plasma-sun
100
List the 3 subatomic particles, their charges, and their locations in the atom.
What is proton-positive-nucleus, neutron-neutral-nucleus, electron-negative-electron cloud
100
The best tool to measure liquid volume
What is a graduated cylinder
100
Two part question:
1) Is density a physical or chemical property?
2) A solid object has a volume of 3 cm³ and a mass of 15 g. What is the density of the object?
What is Physical; 5 g/cm³
100
16 Find: Atomic #:
S Mass #:
Sulfur Protons:
32 Electrons:
Neutron:
Symbol:
Name:
What is Atomic #: 16
Mass #: 32
Protons: 16
Electrons: 16
Neutron: 16 (32-16)
Symbol: S
Name: Sulfur
200
The motion of particles in a liquid is:
a. More than in a gas
b. The same as in a gas
c. More than in a solid
d. the same as in a solid
What is C. More than in a solid
200
Which of the following is an atom and which is a molecule?
O2
Fe
What is Fe=element,O2=molecule
200
The measure for how much space an object takes up
a. matter
b. volume
c. weight
d. Mass
What is b. volume
200
Which of the following is NOT a chemical property?
A. Phase change
B. Combustibility
C. Flammability
D. Reactivity
What is A-Phase Change
200
True or False:
Metals are good conductors of heat and electricity.
What is True
300
Matter that has a definite volume but not a definite shape is a
What is liquid
300
Which of the following would NOT be found in a molecule?
A. An atom
B. An element
C. An electron
D. A mixture
What is D. a mixture
300
What is the difference between mass and weight and the SI units for each?
What is mass is the amount of matter in an object (kg) and weight is the gravitational force on an object (N)
300
Identify the following as a chemical or physical change:
leaves changing color in the fall
butter melting
What is leaves changing color=chemical; butter melting=physical
300
What are metalloids?
What is The elements between metals and nonmetals on the periodic table.
400
In which of the following do the molecules have the least kinetic energy?
A. cup of warm water
B. pan of hot oil
C. pitcher of lemonade
D. frozen popsicle
What is D. a frozen popsicle
400
How many electrons are contained in a neutral atom of an element with an atomic number of 30 and an atomic mass of 65.38?
What is 30
400
What is the best tool to measure the mass of a solid?
What is a triple beam balance
400
How are chemical properties different from physical properties?
What is Chemical properties are properties that describe a substance’s ability to react in a chemical reaction with other substances.
Physical properties are those that can be observed or measured without changing the identity of the substance.
400
Which of the following shows an Element?
A. Cl
B. NaCl
C. O2
D. CO
What is A. Cl
500
Which of the following statements is true
about a liquid changing to a solid?
A. The kinetic energy of the substance is increasing
B. The kinetic energy of the substance remains constant
C. The temperature of the substance must be known to determine if the kinetic energy is changing
D. The kinetic energy of the substance is decreasing
What is D. The kinetic energy of the substance is decreasing
500
The chemical formula for glucose is C6H12O6. How many atoms and how many different elements make up one molecule of glucose?
What is 24 atoms and 3 elements
500
Anything that takes up space and has mass is called?
What is matter
500
What is one clue to tell if it is a physical change?
What is any of the following: Change phase (solid, liquid, gas)
No new substance created
No new substance destroyed
Shape changes
Size changes
No color change
500
In the chemical formula for chloroform, CHCl3, what does the subscript 3 represent?