Periodic Table of Elements
Particles
Energy Transfer
Dissolving and Melting
Fun Fact Trivia
100
Which element is the first on the periodic table?
A) Oxygen
B) Carbon
C) Hydrogen
D) Helium
C) Hydrogen
100
Describe how particles are moving in a gas
In a gas, particles are moving very quickly and are spread out far apart from each other. Unlike solids and liquids, where particles are more closely packed, gas particles have a lot of space between them and are constantly in random motion.
100
Describe what convection is.
Convection is the process of heat transfer through the movement of fluids, like liquids or gases. It happens when warmer, less dense parts of the fluid rise, and cooler, denser parts sink. This creates a circular motion called a convection current.
100
Did dropping the M&M in the cup above the hot water demonstrate dissolving or melting?
Melting
100
Which of the following elements is commonly found in both the Earth's core and in the metal used to make steel?
A) Oxygen
B) Iron
C) Gold
D) Helium
B) Iron
200
Which element has the chemical symbol Au?
GOLD
200
A group of students put 5 mL of a white solid substance into a bottle. They poured 10 mL of a clear liquid into the bottle and quickly sealed the system with a stopper with a balloon on top.
They swirled the liquid to mix the two substances together and set the closed bottle-balloon system on the table. The mixture bubbled at the bottom of the bottle and the balloon slowly began to inflate.
How can you tell a chemical reaction has occurred?
a. no new substances formed
b. the substance bubbled
c. the substances mixed together
d. the white substance disappeared
b. the substance bubbled
200
Holding a warm coffee cup demonstrates what mechanism of heat transfer?
conduction
200
Did dropping the M&Ms in the hot water demonstrate melting or dissolving?
Dissolving
200
What is the process of iron combining with oxygen called?
Rusting or oxidation
300
Name the elements represented in each of the three chemical formulas listed below.
Water H2O
Sodium chloride NaCl
Carbon dioxide CO2
Hydrogen oxygen
Sodium chlorine
carbon oxygen
300
Which of the following always results from a chemical reaction?
a. bubbles
b. fire or smoke
c. temperature change
d. a new substance
d. a new substance
300
A student heated 50 mL of water from 0ºC to 60ºC. How much energy did she use to heat the water? Remember: cal = m x ∆T
3,000 cal
300
What is the process of a solid changing to a liquid called?
Melting
300
What element, atomic number 3 on the periodic table, is an essential component of batteries often used to store harvested solar energy?
Lithium
400
What is the difference between the substances represented by the symbols Co and CO?
a. They are two different ways to represent the element cobalt
b. one is the symbol for an element, and one is the formula for a compound
c. Co represents the element cobalt, CO represents the element copper
d. they represent two substances, each made up of two elements
b. one is the symbol for an element, and one is the formula for a compound
400
A student places a warm can of fruit juice in a bucket of ice water. What happens to the particles of juice?
a. The number of juice particles decreases as energy transfers to the ice water.
b. Energy flow decreases the size of the juice particles.
c. Cold energy decreases the motion of the juice particles.
d. Energy flow decreases the space between the juice particles.
d. Energy flow decreases the space between the juice particles.
400
What are three examples of radiation?
sun, campfire, microwave
400
Why does stirring help a solid dissolve faster in a liquid?
A) Stirring makes the solid particles larger, which helps them dissolve.
B) Stirring brings fresh solvent into contact with the solid, allowing it to dissolve faster.
C) Stirring increases the temperature of the liquid, which slows down the dissolving process.
D) Stirring changes the chemical structure of the solid, causing it to dissolve.
B) Stirring brings fresh solvent into contact with the solid, allowing it to dissolve faster.
400
What element did the famous chemist Marie Curie name after her home country, Poland?
Polonium (Po)
500
What chemist is credited for creating the first periodic table of elements?
Dmitri Mendeleev
500
Which of the following statements is true about the movement of particles in a solid compared to a liquid?
A) Particles in a solid move freely in all directions, while particles in a liquid vibrate in fixed positions.
B) Particles in a solid vibrate in fixed positions, while particles in a liquid move past each other.
C) Particles in both a solid and liquid are arranged randomly and can move freely.
D) Particles in a solid have more space between them than in a liquid.
B) Particles in a solid vibrate in fixed positions, while particles in a liquid move past each other.
500
How does a thermometer measure temperature?
Temperature is the measure of the average kinetic energy of the particles in a substance. When the average kinetic energy of the liquid particles inside the thermometer increases, the particles take up more space and the volume expands inside the tube. The lines on a thermometer are designed to show the temperature of the liquid determined by the volume of the liquid at that average kinetic energy.
500
Why doesn't oil dissolve in water?
A) Oil and water have similar properties.
B) Oil is heavier than water.
C) Oil molecules are non-polar, while water molecules are polar.
D) Oil and water are both made of the same elements.
C) Oil molecules are non-polar, while water molecules are polar.
500
What discovery is chemist Marie Curie known for?
Radioactivity