11.1 The overarching concepts in chemistry

• What is a physical property of matter?

  Melting point
• Chemical properties describe how a substance changes during a chemical reaction


  True
• What is the charge of a neutron?

  Neutral (0)
• What are the three main types of chemical bonds?

  Ionic, covalent, metallic
• What type of compounds can be gases, liquids, or solids with varying melting/boiling points?

  Covalent
• What is an example of a chemical property mentioned in the text?

  Flammability
• Neutrons are located in the nucleus and have a neutral charge.
• What is the main process in chemical bonding?

  Formation of bonds
• What does the number of protons determine in an atom?

  Atomic number
• Covalent bonds occur when non-metal atoms share electrons to achieve stability.
• A chemical reaction involves the rearrangement of atoms to form new substances called products from reactants.


  True
• Stoichiometry uses the molar mass to convert between mass and moles.
• What is an example of a chemical property of matter?

  Flammability
• What type of bonding is formed by the sharing of electrons between non-metals?

  Covalent
• What is the particle arrangement in a solid state?

  Regular lattice
• What happens to the surroundings in an exothermic reaction?

  Warmer
• What formula is used to convert mass to moles?

  \text{Moles} = \frac{\text{Mass}}{\text{Molar mass}}</latex>
• What is the pH value of a neutral solution?

  7
• Physical properties can be observed without changing the substance


  True
• Match the property type with its description:

  Physical properties ↔️ Observed without changing composition

  Chemical properties ↔️ Describe how substance undergoes chemical change
• The number of protons determines an element's atomic number


  True
• Match the bond type with its formation:

  Ionic bond ↔️ Transfer of electrons

  Covalent bond ↔️ Sharing of electrons

  Metallic bond ↔️ Delocalization of electrons
• Metallic bonds result in high electrical and thermal conductivity.
• Chemical properties describe how a substance changes during a chemical reaction


  True
• What are the three basic components of an atom?

  Protons, neutrons, electrons
• Chemical bonding is the process by which atoms form bonds to create stable molecules or compounds.

  True
• Metallic bonds allow for high electrical and thermal conductivity due to the delocalization of electrons.


  True
• In a solid, particles are closely packed in a regular lattice
• What is the purpose of balancing chemical equations?

  Ensuring atom conservation
• Physical properties of matter can be observed without changing the chemical composition of the substance.


  True
• What type of bonding is formed between a metal and a non-metal?

  Ionic
• Covalent compounds can be gases, liquids, or solids.


  True
• In a gas, particles move freely in all directions.


  True
• Activation energy is the minimum energy needed for a reaction to start
• Match the term with its definition:

  Solute ↔️ Substance being dissolved

  Solvent ↔️ Substance dissolving the solute

  Solution ↔️ Homogeneous mixture of solute and solvent
• Bases produce hydroxide ions (OH-) in water.


  True
• Matter refers to anything that has mass and occupies space.
• Give an example of a chemical property of matter.

  Flammability
• Atomic structure refers to the basic components that make up an atom: protons, neutrons, and electrons.
• The sum of protons and neutrons gives the mass number.