Wiki User
∙ 12y agoTRUE
Wiki User
∙ 12y agoTrue. A common ion is an ion that is found in more than one ionic compound. These ions are shared among different compounds, which can affect their solubility and reactivity in solutions.
This is false. Ionic compounds have higher boiling points than molecular compounds. For example, the boiling point of the ionic compounds copper(II) oxide, CuO, and sodium chloride, NaCl are 2,000 degrees C and 1,413 degrees C, respectively. The boiling point of the molecular compounds carbon tetrachloride, CCl4, and water, H2O are 76.72 degrees C and 100 degrees C, respectively.
True. Molecular compounds have low melting points because their intermolecular forces are weaker compared to ionic or metallic compounds. They also do not conduct electricity well because they lack free-moving charged particles.
True. Lipids are hydrophobic compounds that do not mix well with water.
true
Yes, ionic bonds typically form between metals and nonmetals because the electronegativity difference between these types of elements is usually large.
True
True
The statement that all compounds have a composition of ionic compounds is false. Many compounds can be covalent in nature, where atoms share electrons instead of transferring them. On the other hand, it is true that compounds have a definite composition with fixed ratios of elements and compounds are formed by the bonding of two or more different elements.
False. Carbon can form both ionic and covalent compounds. Carbon typically forms covalent bonds due to its ability to share electrons with other elements.
True. Ionic compounds form between a metal and a nonmetal. The metal loses electrons to become a cation (positively charged ion), while the nonmetal gains these electrons to become an anion (negatively charged ion).
True. In an aqueous solution of ionic compounds, the positive and negative ions will attract each other due to their opposite charges, forming electrostatic bonds known as dipole attractions.
True. Binary ionic compounds consist of a positively charged metal ion and a negatively charged nonmetal ion. These ions usually come from opposite sides of the periodic table.
True. The crystal lattice structure of ionic compounds plays a significant role in determining their melting and boiling points. The stronger the forces holding the ions in the lattice together, the higher the melting and boiling points of the compound.
This is false. Ionic compounds have higher boiling points than molecular compounds. For example, the boiling point of the ionic compounds copper(II) oxide, CuO, and sodium chloride, NaCl are 2,000 degrees C and 1,413 degrees C, respectively. The boiling point of the molecular compounds carbon tetrachloride, CCl4, and water, H2O are 76.72 degrees C and 100 degrees C, respectively.
True. In naming ionic compounds, the cation (positively charged ion) is always named first followed by the anion (negatively charged ion). This convention helps identify the elements and their charges in the compound.
Actually, a single unit of an ionic compound is referred to as a formula unit. Unlike molecules, ionic compounds do not exist as discrete molecules but as an arrangement of ions in a crystal lattice.
True. Most salts are binary ionic compounds composed of a cation from a metallic element and an anion from a nonmetallic element.