chemistry term 2

• Which of the following best describes an ionic compound?

  Composed of positively and negatively charged ions
• Which property is most commonly associated with covalent compounds?

  Formed by the share of electrons
•  Sodium chloride (NaCl) is an example of:

   An ionic compound
• What is the correct definition of a covalent bond?

  A bond formed by the sharing of electron pairs between atoms
• Which of the following substances is most likely to be an ionic compound?

  MgCl₂
•  What type of elements typically form covalent bonds?

   Non-metals and non-metals
• What is the term for the ability of metals to reflect light?

   Luster
•  In which state do ionic compounds conduct electricity?

  liquid and solid
• Which of the following pairs of elements will most likely form an ionic bond?

  Sodium and chlorine
• Why do covalent compounds have lower melting and boiling points than ionic ones?

  They have weak intermolecular forces
• Which of the following is a property of most metals?

  High melting and boiling points
• What is an alloy? A mixture of two or more metals.
• Which of the following is an example of an alloy?

  Stainless Steel
• What is the primary characteristic of a metalloid?

  They exhibit properties of both metals and nonmetals.
• Which of these materials is a good conductor of electricity? Copper
• What property allows metals to be drawn into wires?

  Ductility
•  What is the formula for magnesium nitrate?

   Mg(NO3)2​
•  Metals tend to lose electrons to form:

   Positive ions
• What is the correct name for Fe2O3​?

   Iron(III) oxide
• Which of the following is the correct name for CO2​?

  Carbon dioxide