What is compound complex and simple sentence?
What is compound complex and simple sentence?
A simple sentence consists of only one clause. A compound sentence consists of two or more independent clauses. A complex sentence has at least one independent clause plus at least one dependent clause. Sentence 4 is compound-complex (also known as complex-compound). Example 5 is a sentence fragment.
What are the types of compound?
Types of Compounds
- Metal + Nonmetal —> ionic compound (usually)
- Metal + Polyatomic ion —> ionic compound (usually)
- Nonmetal + Nonmetal —> covalent compound (usually)
- Hydrogen + Nonmetal —> covalent compound (usually)
What is a formula of a compound?
Key Points. A molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule. The empirical formula represents the simplest whole-integer ratio of atoms in a compound.
How do you write the formula for a covalent compound?
NAMING COVALENT COMPOUNDS. Naming binary (two-element) covalent compounds is similar to naming simple ionic compounds. The first element in the formula is simply listed using the name of the element. The second element is named by taking the stem of the element name and adding the suffix -ide.
What is the difference between a compound and a molecule?
A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion. All molecules are not compounds.
What are two methods for writing a balanced formula?
Format Method – Writing the symbol of the cation and then the anion. Add whatever subscripts in order to balance the charges. Crisscross Method – The numerical value of the charge of each ion is crossed over and becomes the subscripts for the other ion.
When writing the formula for an ionic compound?
The overall ionic formula for a compound must be electrically neutral, meaning it has no charge. When writing the formula for the ionic compound, the cation comes first, followed by the anion, both with numeric subscripts to indicate the number of atoms of each.
Which is the correct order to use in writing the name of an ionic compound?
The correct option is A. In chemistry, when writing the names of ionic compounds, one has to write the cation first followed by the anion. The first part of the name is called the cation, it is positively charged and is a metal while the second part is called the anion, it is negatively charged and is a non metal.
When writing the formula for any ionic compound the charges of the ions must?
Chemical formulas for ionic compounds are called ionic formulas. A proper ionic formula has a cation and an anion in it; an ionic compound is never formed between two cations only or two anions only. The key to writing proper ionic formulas is simple: the total positive charge must balance the total negative charge.
How do you identify an ion in a compound?
To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.