Physical and Chemical Properties
Which of the following is a physical property?
A. Explosive
B. Combustible
C. Melting point
D. Ability to rust
C. Melting Point
Density is found by dividing?
A. mass by volume
B. volume by mass
C. mass by area
D. area by mass
A. Mass by volume
How many electrons are in the atom of magnesium?
A. 2
B. 3
C. 4
D. 5
A. 2
Which color of visible light has the shortest wavelength?
A. yellow
B. green
C. blue
D. violet
D. violet
Which element is "NA"?
Sodium
Which of the following is a physical change?
A. corrosion
B. explosion
C. evaporation
D. rotting of food
C. Evaporation
When an iron nail is ground into powder, its mass ___?
a.stays the same
b.decreases
c.increases
d.cannot be determined
A. Stays The Same
How many electrons does Hydrogen have?
a.4
b.17
c.1
d.8
C. 1
What is the highest electronegativity value?
a.cesium
b.helium
c.calcium
d.fluorine
D. Fluorine
Which of the following elements is transition metal?
a. cesium
b.copper
c.hydrogen
d.tin
B. Copper
Which of the following is a physical change?
a.corrosion
b.explosion
c.evaporation
d.rotting of food
C.Evaporation
What is the volume of 45.6 g of silver if the density of silver is 10.5 g/mL?
a.0.23 mL
b.4.34 mL
c.479 mL
d.None of the above
A. 0.23 mL
How many electrons does Chlorine have?
a. 17
b. 19
c. 12
d. 16
A. 17
Which of the following electromagnetic waves have the highest frequencies
a.ultraviolet light waves
b.X-rays
c.microwaves
d.gamma rays
D. Gamma Rays
Determine the number of neutrons in 16 O.
a. 4
b. 8
c. 16
d. 24
B. 8
Which of the following is a chemical property?
a.color
b.hardness
c.freezing point
d.ability to react with oxygen
D. Ability to react with oxygen
Which state of matter takes both the shape and volume of its container?
a. solid
b. liquid only
c. gas only
d. both liquid and gas
C. Gas Only
How many properties are there in science?
a. 6
b.9
c.2
d.3
A. he six physical properties are color, density, volume, mass, boiling point, and melting point.
Radio Waves
a. have the longest wavelengths and lowest frequencies of all
b. have the fastest wavelengths and lowest frequencies of all
c. have the longest wavelengths and slowest frequencies of all
d. have the shortest wavelengths and longest frequencies of all
A. Have the longest wavelengths and lowest frequencies of all
What's the rarest element on Earth?
a. gold
b. copper
c. francium
d.barium
C. Francium
Which of the following is a physical property?
a.explosive
b.combustible
c.melting point
d.ability to rust
C. Melting Point
The nucleus of an atom is
a. the central core and is composed of protons and neutrons
b. positively charged and has more protons than neutrons
c. negatively charged and has a high density
d. negatively charged and has a low density
A. The central core and is composed of protons and neutrons
How many electrons are in each energy level?
a. 2 electrons on the first energy level, 8 electrons on the second level, 8 electrons on the third energy level, and 1 on the fourth energy level.
b. 2 electrons on the first energy level, 8 electrons on the second level, 19 electrons on the third energy level, and 1 on the fourth energy level.
c. 6 electrons on the first energy level, 4 electrons on the second level, 9 electrons on the third energy level, and 1 on the fourth energy level.
A. 2 electrons on the first energy level, 8 electrons on the second level, 8 electrons on the third energy level, and 1 on the fourth energy level.
The higher the frequency the ____ the energy
a. lower
b. faster
c. stronger
d. higher
D. Higher
What is neon's atomic number?
a. 4
b.23
c. 10
d. 36
C. 10