| What to create | Exam |
| Which subject | Chemistry |
| What age group | Year or Grade 9 |
| What topic | atoms, molecules, and ions |
| Question types | Mixed |
| Number of questions | 30 |
| Number of answers | 4 |
| Correct answers | Exactly 1 |
| Show correct answers | |
| Use images (descriptions) | |
| Any other preferences |
Answer the following questions based on the given descriptions of images related to atoms, molecules, and ions.
What is represented by the image?
The image of a simple atom with a nucleus in the center containing protons and neutrons, and electrons orbiting around it.
A. Molecule
B. Ion
C. Atom
D. Compound
Which diagram illustrates a covalent bond?
The image of two oxygen atoms sharing a pair of electrons, with dashed lines representing the shared electrons.
A. Ionic bond
B. Covalent bond
C. Metallic bond
D. Hydrogen bond
What type of ion is depicted in the image?
The image of a sodium atom losing one electron to become positively charged, shown with an electron cloud and a positive ion symbol.
A. Anion
B. Neutral atom
C. Cation
D. Molecule
Identify the molecule in the image.
The image of a water molecule, consisting of two hydrogen atoms and one oxygen atom joined together.
A. Carbon Dioxide
B. Water
C. Oxygen
D. Hydrogen
What does this diagram represent?
The image of a periodic table with symbols, atomic numbers, and electron configurations.
A. Atomic Structure
B. Periodic Trends
C. Compounds
D. Chemical Reactions
Which particle is shown in this image?
The image of a negatively charged electron, with a focus on its wave-particle duality concept.
A. Proton
B. Neutron
C. Electron
D. Ion
What type of bond is represented in the image?
The image of two different elements (Na and Cl) transferring electrons from sodium to chlorine, denoting an ionic bond.
A. Ionic bond
B. Covalent bond
C. Metallic bond
D. Polar bond
What chemical structure is displayed in the image?
The image of a carbon dioxide molecule with one carbon atom double bonded to two oxygen atoms.
A. Methane
B. Ammonia
C. Carbon Dioxide
D. Ethanol
Which ion is represented in the image?
The image of a chlorine atom with an additional electron, displaying the anion symbol and charge.
A. Cation
B. Anion
C. Neutral atom
D. Free radical
What does the image illustrate?
The image of a molecular formula with the symbols and numbers indicating the quantity of atoms.
A. Empirical formula
B. Molecular formula
C. Structural formula
D. Chemical equation
Identify the atom shown in the image.
The image of a helium atom with two protons and two electrons.
A. Helium
B. Hydrogen
C. Carbon
D. Lithium
What type of substance is this image depicting?
The image of a collection of different molecules in a beaker, representing a chemical solution.
A. Solid
B. Liquid
C. Gas
D. Plasma
What kind of lattice structure is shown in this image?
The image of sodium chloride arranged in a cubic structure illustrating its ionic compound nature.
A. Molecular lattice
B. Ionic lattice
C. Metallic lattice
D. Covalent lattice
What does the image represent?
The image of a sugar molecule (C6H12O6) with a diagram indicating its carbon, hydrogen, and oxygen atoms.
A. Inorganic compound
B. Organic compound
C. Salt
D. Mineral
Which subatomic particle is highlighted in this image?
The image showing protons within an atomic nucleus, distinguished from neutrons.
A. Electron
B. Neutron
C. Proton
D. Ion
Identify the molecule illustrated in the image.
The image of a molecule of methane (CH4) with a carbon atom at the center bonded to four hydrogen atoms.
A. Ethane
B. Propane
C. Methane
D. Butane
What can be inferred from the image?
The image displaying the electron configuration of oxygen, showing the arrangement of electrons in shells.
A. Atomic mass
B. Atomic number
C. Electron configuration
D. Neutron number
What type of mixture is shown in this image?
The image of sand mixed with salt, representing a heterogeneous mixture.
A. Homogeneous mixture
B. Heterogeneous mixture
C. Solution
D. Colloid
What does this image illustrate regarding atomic structure?
The image of Bohr’s model of an atom with quantized energy levels.
A. Quantum model
B. Nuclear model
C. Planetary model
D. Solid sphere model
Which polyatomic ion is represented in the image?
The image depicting sulfate (SO4^2-) with sulfur and four oxygen atoms.
A. Nitrate
B. Phosphate
C. Sulfate
D. Carbonate
What does the following image demonstrate?
The image of a Lewis dot structure for an oxygen molecule (O2) showing shared electron pairs.
A. Ionic bond formation
B. Covalent bond formation
C. Metallic bonds
D. Hydrogen bonding
What chemical concept is illustrated in this image?
The image of an electron cloud model representing the probable location of electrons in an atom.
A. Atomic radius
B. Periodicity
C. Bonding theories
D. Electron distribution
Identify the solution depicted in the image.
The image of a clear liquid representing a saltwater solution, with dissolved sodium and chlorine ions.
A. Colloidal solution
B. Saturated solution
C. Unsaturated solution
D. Aqueous solution
What is being shown in the image?
The image of two hydrogen atoms and one oxygen atom, showing their combination to form a water molecule.
A. Single replacement reaction
B. Combination reaction
C. Decomposition reaction
D. Displacement reaction
What kind of chemical reaction is illustrated in the image?
The image displaying burning hydrocarbons generating carbon dioxide and water vapor.
A. Synthesis
B. Decomposition
C. Combustion
D. Double displacement
What does the following representation depict?
The image showing a balanced chemical equation demonstrating conservation of mass.
A. Unbalanced reaction
B. Balanced reaction
C. Aqueous reaction
D. Combustion reaction
Identify the type of substance illustrated in the image.
The image of an arrangement of metal atoms in a lattice configuration displaying metallic characteristics.
A. Ionic compound
B. Molecular compound
C. Metallic compound
D. Supercooled liquid
What does this image suggest about the reaction?
The image of reactants turning into products, indicating a chemical change has occurred.
A. Physical change
B. Chemical change
C. Catalytic reaction
D. Thermal decomposition
What ion is depicted in the image?
The image of a magnesium atom losing two electrons to become a positively charged ion (Mg^2+).
A. Neutral atom
B. Cation
C. Anion
D. Free radical
Identify the chemistry concept shown in this image.
The image of a laboratory setup illustrating the techniques for obtaining pure substances through crystallization.
A. Filtration
B. Crystallization
C. Distillation
D. Evaporation