a material that is made up of a combination of atoms bonded together best describes a compound.
What best describes a compound?
A compound is a substance formed when two or more chemical elements are chemically bonded together . In mixtures, the substances present are not chemically bonded together. The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds.
Which example describes a compound?
Example 1: Pure water is a compound made from two elements – hydrogen and oxygen. The ratio of hydrogen to oxygen in water is always 2:1. Each molecule of water contains two hydrogen atoms bonded to a single oxygen atom. Example 2: Pure table salt is a compound made from two elements – sodium and chlorine.
Which of the following properties describes a compound?
Answer: (4) It is mixed in any proportion by mass
When two or more elements combine chemically by mass in a fixed ratio , the substance obtained is known as a compound. Compounds can be described as substances with a fixed ratio of their atoms consisting of two or more different types of elements.
Which of the following best describe a compound microscope?
A compound microscope is a microscope that uses multiple lenses to enlarge the image of a sample . ... Ocular (eyepiece) lens. Objective turret or Revolver (to hold multiple objective lenses) Objective.
What are compounds 10 examples?
- Water – Formula: H 2 O = Hydrogen 2 + Oxygen. ...
- Hydrogen Peroxide – Formula: H 2 O 2 = Hydrogen 2 + Oxygen 2 ...
- Salt – Formula: NaCl = Sodium + Chlorine. ...
- Baking Soda – Formula: NaHCO 3 = Sodium + Hydrogen + Carbon + Oxygen 3 ...
- Octane – Formula: C 8 H 18 = Carbon 8 + Hydrogen 18
What is a compound simple definition?
compound. [ kŏm′pound′ ] A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule . The elements cannot be separated by physical means. Water, for example, is a compound having two hydrogen atoms and one oxygen atom per molecule.
What are 5 examples of compounds?
- Sugar (sucrose – C12H22O11)
- Table salt (sodium chloride – NaCl)
- Water (H2O)
- Carbon dioxide (CO2)
- Sodium bicarbonate (baking soda – NaHCO3)
What is compound and give 5 examples?
Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. Common examples are water (H 2 O), salt (sodium chloride, NaCl), methane (CH 4 ) .
What are 20 examples of compounds?
| No Compound Formula | 1 Water H 2 O | 2 Bleach (Sodium hypochlorite) NaOCl | 3 Salt (Sodium chloride) NaCl | 4 Glucose (Blood sugar) C 6 H 12 O 6 |
|---|
What are the properties of compounds and mixtures?
A compound contains atoms of different elements chemically combined together in a fixed ratio . A mixture is a combination of two or more substances where there is no chemical combination or reaction. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
What is the properties of elements and compounds?
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.
What are three properties of compound?
In this lesson, we looked at some of the more common physical properties of compounds, including color, odor, melting point and boiling point . A chemical property is a characteristic of a substance that can only be observed during some type of chemical reaction.
What are the 14 parts of a microscope?
- The Eyepiece Lens. ••• ...
- The Eyepiece Tube. •••
- The Microscope Arm. •••
- The Microscope Base. •••
- The Microscope Illuminator. •••
- Stage and Stage Clips. •••
- The Microscope Nosepiece. •••
- The Objective Lenses. •••
What are the three main parts of a compound microscope?
- Head/Body. houses the optical parts in the upper part of the microscope.
- Base. of the microscope supports the microscope and houses the illuminator.
- Arm. connects to the base and supports the microscope head.
Why is it called a compound light microscope?
The compound light microscope is a tool containing two lenses, which magnify, and a variety of knobs used to move and focus the specimen . Since it uses more than one lens, it is sometimes called the compound microscope in addition to being referred to as being a light microscope.
