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What is the representative unit of a covalent bond?
chemical formula of molecular compounds. represents the covalent bonds as dashes and shows the arrangement of covalently bonded atoms. The representative unit of a molecular compound is a molecule.
What is an ionic compound and how is it represented?
Ionic compounds can be described using chemical formulas, which represent the ratios of interacting elements that are found in the ionic solid or salt. Ionic solids are typically represented by their empirical formulas.
What is the simplest unit of an ionic compound called?
The smallest unit of an ionic compound is a formula unit. The mass of this formula unit is called the formula mass. ( We will discuss more about formula mass in section 7.1.) The formula unit of sodium chloride is NaCl.
What is the representative unit?
A representative particle is the smallest unit of a substance that can be broken down without altering the composition. Matter is composed of three types of representative particles: atoms, molecules and formula units.
How do you find the formula unit of an ionic compound?
1 Answer
- Identify the symbol of the cation and the anion.
- Identify the charge of each ion and place it as a superscript above the symbol.
- Calculate the numbers of each ion that make the total charge equal to zero.
- Place these numbers as subscripts after the symbols.
Which formula represent an ionic compound?
The positive ion, called a cation, is listed first in an ionic compound formula, followed by the negative ion, called an anion. A balanced formula has a neutral electrical charge or net charge of zero….Examples of Ionic Compounds.
| Compound Name | sodium chloride |
|---|---|
| Formula | NaCl |
| Cation | Na+ |
| Anion | Cl- |
What is a representative molecule?
A representative particle is the smallest unit in which a substance naturally exists. Likewise, all molecular compounds such as H2O and CO2 exist as molecules and so the molecule is their representative particle. For ionic compounds such as NaCl and Ca(NO3)2, the representative Page 2 particle is the formula unit.