Math
A Value of 25o is a Measurement of ________.
A) Distance
B) Volume
C)Temperature
D)Density
C) Temperature
Which of the following is a compound?
A) mercury (Hg) in a gauge
B) salt (NaCl) in a shaker
C) Aluminum (Al) in a can
D) Gold (Au) in a ring
B) salt (NaCl)
When a metal looses an electron it becomes a
A) Cation
B) Anion
C) Neutral
A) Cation
Aluminum
A) Al
B) Am
C) Au
D) Sn
E) Ag
A) Al
A sodium ion is an example of a(n) ___.
A) Anion
B) polyatomic ion
C) nonmetal ion
D) cation
D) Cation
The measurement 0.000 043 m, expressed correctly using scientific notation is ________.
A) 4.3 x 10-7
B) 4.3 x 10-6
C) 4.3 x 106
D) 4.3 x 10-5
E) 4.3
D) 4.3 x 10-5
Which of the following is a chemical change?
A) Wood Burning in a fireplace
B) ice melting to water
C) Chopping wood for a fire
D) sewing a button
A) Wood Burning
The atomic number of Lithium is
A) 3
B) 6.941
A) 3
Copper is an example of a(n) _______.
A) transition metal
B) nonmetal
C) metalloid
D) Nobel Gas
E) Transition element
A) Transition metal
Which of the following compounds contains an ionic bond?
A) NH3
B) H2O
C) CaO
D) H2
C) CaO
Which of the following measurements has three significant figures?
A) 0.005 m
B) 510 m
C) 0.520 m
D) 0.051 m
E) 5100 m
C) 0.520 m
A Pure substance is matter that consists of matter with a composition that ______.
A) is fixed in a definite proportion at all times
B) varies according to the amount of water present
C) depends on the temperature
D) always contains oxygen
E) always contains two or more substances
A) Is fixed in a definite proportion at all times
You can find the number of protons in an element by it's
A) Mass number
B) Atomic Number
C) Charge
B) Atomic Number
Which of the following elements is a metal?
A) nitrogen
B) fluorine
C) argon
D) Strontium
E) Phosphorous
D) Strontium
Which of the following compounds contains an ion with a 3+ charge?
A) KCl
B) Na2O
C) FeCl3
D) CuCl
C) FeCl3
Which of the following is a property of a solid?
A) It takes the shape of the container
B) It fills the volume of the container
C) The particles move at a rapid rate
D) The interactions between its particles are very weak
E) The particles have fixed positions and are very close together
E) The particles have fixed positions and are very close together
In Potassium - 37, the 37 refers to the elements
A) Atomic Number
B) Number of electrons
C) Mass number
C) Mass number
The element in this list with chemical properties similar to Sodium is __________.
A) Copper Cu
B) Nitrogen N
C) Potassium K
C) Potassium K
Magnesium chloride has the following formula.
A) MgCl2
B) MnCl2
C) MgCl
D) MgClO3
A) MgCl2
The Mass number is the sum of
A) Protons and Electrons
B) Located on the periodic table
C) Protons and Neutrons
C) Protons and Neutrons