What are elements and compounds answer key?
An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.
How is a mixture different from a compound answer key?
In a compound the (atoms/molecules) are (chemically physically) combined so that the elements that make up the compound (retain/lose) their identities and (do do not) take on a new set of properties. In a mixture, the substances (lose/retain) their identities.
What is a mixture answer key?
A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components. Some examples of mixtures are a tossed salad, salt water and a mixed bag of M&M’s candy.
What is the key difference between the components of a mixture and the components of a chemical bond?
Mixture:
| Compound | Mixture |
|---|---|
| The components of a compound can be separated by chemical of electro-chemical reactions. | The components of a mixture can be separated by physical methods. |
| Compounds have a definite or fixed melting and boiling point. | Compounds do not have a fixed melting of boiling point. |
What is the difference between elements and compounds?
Elements are substances that are pure in their nature and are composed of a single atom. Compounds are also pure substances that are composed of elements in definite proportions. Compounds can be broken down using chemical reactions. …
What is mixture give two example?
Mixtures are the substances composed of two or more forms of matter. You can separate them by physical methods. Such examples include a mixture of salt and water, a mixture of sugar and water, different gases, air, etc. In any mixture, the various components do not form through any kind of chemical changes.