Which combination is an element How do you know?
Which combination is an element How do you know?
Answer: A compound is a substance formed when two or more elements are chemically joined. Water, salt, and sugar are examples of compounds. When the elements are joined, the atoms lose their individual properties and have different properties from the elements they are composed of.
How did you know that these are elements compounds?
An element is a pure substance and is found on the periodic table. If you have more than one element chemically bonded, it is a compound. Ex: Hydrogen, oxygen, and iron are all elements.
Why do elements combine to form compounds?
The force that holds together the atoms in a compound; chemical bonding occurs because atoms of an a element become more stable by losing, gaining, and sharing electrons. Why do most elements tend to form compounds. Because they are unstable and can share electrons in their outer energy levels.
What are 2 differences between elements and compounds?
A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule.
What are the three components of chemical formulas?
A chemical formula describes a substance, down to the exact atoms which make it up. There are three basic types of chemical formula, the empirical formula, the molecular formula, and the structural formula./span>
What are some common compounds?
Compounds
| compound name | compound formula | elements present |
|---|---|---|
| carbon dioxide | CO2 | carbon (C) and oxygen (O) |
| sodium chloride | NaCl | sodium (Na) and chlorine (Cl) |
| sodium hydroxide | NaOH | sodium (Na), oxygen (O) and hydrogen (H) |
| calcium chloride | CaCl2 | calcium (Ca) and chlorine (Cl) |
What are 2 inorganic compounds?
Inorganic compounds are important in the body and responsible for many simple functions. The major inorganic compounds are water (H2O), bimolecular oxygen (O2), carbon dioxide (CO2), and some acids , bases, and salts.