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WorksheetsPeriodic Table Quiz
Total questions: 35
Worksheet time: 3570secs
Use the periodic table below to answer the question. How many protons does chromium (Cr) have?
24
25
52
20
Use the periodic table below to answer the question. How many electrons does nitrogen (N) have?
14
7
11
22.9
Read the passage and use the diagram to answer the question. The diagram depicts a model of an atom. No individual subatomic particles are shown. Only the electron shells, or energy levels, and the nucleus are shown. Look at the model, which shows three electron shells of an atom without any electrons. If the valence shell has six electrons, what is the atomic number of the atom?
6
8
10
16
Use the diagram below to answer the question. Use the correct words to complete the sentence. The melting of ice cream requires more _______________ from the surroundings than it releases, this is an ____________________ process.
energy, exothermic
energy, endothermic
Water, exothermic
Water, endothermic
Why do ionic bonds form?
So the number of protons equals the number of electrons.
To stabilize the atom with a full outer shell.
So an atom can become unstable.
So atoms will stick together to form molecules.
Which of the choices cannot be recycled?
Plastic bag
Empty glass bottles
Banana peelings
Old clothes
Composting is a method for recycling (a) into a rich, dark soil amendment called compost. Anything that was once alive will be decomposed by fungus, bacteria, and invertebrates, such as worms, if exposed to air and water.
What is the final stage in the life cycle of a low-mass star?
neutron star
White Dwarf
black hole
supernova
What is the name given to the explosion of a high-mass star?
supernova
hypernova
superstar
stellar explosion
A star is born and lit up when ______ happens and provides the star with energy that it will use for millions of years.
nuclear fusion
gravity
hydrogen
iron
nuclear fusion
gravity
hydrogen
iron
A student found a chunk of metal, but he does not know the identity of the metal. He determined that the unknown metal has a mass of 42.0 grams and a volume of 4.0 mL. What is the density (D = m/V) of the metal?
7.87 g/mL
10.5 g/mL
8.96 g/mL
10.98 g/mL
This image shows the bonding between Lithium and Fluorine. What does the red arrow show?
electrons being shared
electrons being transferred to Fluorine
electrons being destroyed
electrons being transferred to Lithium
Which of the following can be used to make compost?
dry leaves
Skin of fruits
seeds
All of the above
The term 'recycle' means:
make something into something new
use something over and over again
make something that can clean your room
none of the above
Which of the following can be used to make compost?
Animal manure
Fruits peelings
Food waste
All of the above
Which of the following is a characteristic of an exothermic reaction?
Energy is absorbed
Reaction is uphill
Products have more energy than reactants
Energy is released
What type of reaction is shown in the photo?
Exothermic
Isothermic
Endothermic
None of the above
Sara is reacting sulfuric acid with magnesium ribbon, the reaction is exothermic. What preliminary measure should she take to identify it as an exothermic reaction?
she will use a pair of tongs
she will use a thermometer to record temperature
she will not record temperature
None
When gasoline burns in a car engine, it undergoes a chemical change. This is a chemical reaction. The atoms in the gasoline and the atoms in the oxygen combine to form different molecules in this combustion reaction. What are the products formed in this reaction?
CH₄ + O₂
C + water
CO₂ + H₂O
H₂ + O₂
The Law of Conservation of Energy states:
Energy can created or destroyed but not transformed
Energy cannot be created or destroyed, it can only transformed
Energy can't be created, destroyed or transformed
Energy cannot be created or destroyed.
Jack’s mother asked him to fill a pitcher with water and put it on the table to use with their meal. When Jack filled the pitcher, the water was moving, and it obviously had energy. Which type of energy is associated with this scenario?
Chemical energy
Kinetic energy
Potential energy
Thermal energy
Photosynthesis is a process where plants absorb sunlight, and through a series of reactions, they convert this energy into another form of energy stored in glucose. This process is vital for the survival of plants and forms the base of food chains, illustrating the conversion of ________ energy into usable ________ energy.
Chemical, light
Light, chemical
Electrical, chemical
Chemical, electrical
A lump of solid material was found to weigh 20.5 grams. When placed in 100 mL of water, the volume increased by 3 mL. What is the density of the lump of solid material?
7.5 g/mL
6.8 g/mL
0.25 g/mL
0.2 g/mL
The change in enthalpy of an exothermic reaction is
Always positive
Always negative
Can either be positive or negative
None of the above
Which type of reaction is involved in the chemical reaction below: CH₄ + O₂ ----------> CO₂ + H₂O
Combination reaction
Decomposition reaction
Single replacement reaction
Double replacement reaction
Combustion reaction
If I had a cation with a charge of 2+ how would you describe the formation of that ion?
gained 2 electrons
gained 4 electrons
lost 2 electrons
lost 4 electrons
Which of the materials diagram below do you think is most dense?
Aluminum
Plastic
Wood
Have you ever eaten sherbet sweets candy? They fizz in your mouth and your tongue feels cold. Why do you think that is?
It is an exothermic reaction
It is an endothermic reaction
It is made of ice
It is dissolving your mouth
A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?
It is an exothermic reaction
It is an endothermic reaction
monothermic reaction,
Polythermic reaction,
Endothermic and exothermic reactions are characterized by changes in enthalpy. Which of the following correctly describes an exothermic reaction?
Endothermic reaction, positive enthalpy
Exothermic reaction, negative enthalpy
Exothermic reaction, positive enthalpy
Endothermic reaction, negative enthalpy
Valence electrons are located in
energy levels closest to the nucleus
all energy levels
outermost energy level
all of the above
Is this equation balanced?
Yes
No
What instrument would you use to detect an endothermic or exothermic reaction?
triple beam balance
Ruler
thermometer
weighing scale
