Table of Contents
- 1 What are two compounds that are composed of the same elements?
- 2 What compounds have the same elements?
- 3 What does a compound have that is always the same?
- 4 What is an element made up of?
- 5 Is h202 and H2O the same compound?
- 6 What is the difference between element and compound?
- 7 What does it mean to have the same composition?
- 8 Are compounds and molecules the same?
What are two compounds that are composed of the same elements?
Compounds composed of the same elements may have a pH that is either similar or dissimilar to each other. For example, vinegar and vitamin C are composed of the same elements and have a similar pH in that they are both acidic.
What compounds have the same elements?
A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds. Types of compounds include covalent and ionic compounds. They differ in the nature of the bonds that hold their atoms or ions together.
What does a compound have that is always the same?
A compound always has the same elements in the same proportions. For example, carbon dioxide always has two atoms of oxygen for each atom of carbon, and water always has two atoms of hydrogen for each atom of oxygen. A compound always has the same composition throughout.
When a given compound always has the same composition it is said to be?
In chemistry, the law of definite proportion, sometimes called Proust’s law, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.
What are compounds made up of?
A compound consists of two or more types of elements held together by covalent or ionic bonds. Elements cannot be divided into smaller units without large amounts of energy. Compounds, on the other hand, can have their bonds broken with practical amounts of energy, such as the heat from a fire.
What is an element made up of?
atom
An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.
Is h202 and H2O the same compound?
No because there are 2 oxygen not 1 so they are different compounds. two formulas for compounds containing hydrogen and oxygen are H2O and H2O2.
What is the difference between element and compound?
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. …
Does a given compound always have the same chemical formula?
For example, water always contains 8 g of oxygen for every 1 g of hydrogen, and carbon dioxide always contains 2.7 g of oxygen for every 1 g of carbon; this principle means that a given compound always has the same composition regardless of where it comes from.
Which law states that a compound always contains the same elements in the same proportion by mass?
law of definite proportions, statement that every chemical compound contains fixed and constant proportions (by mass) of its constituent elements.
What does it mean to have the same composition?
A pure substance is a form of matter that has a constant composition (meaning it’s the same everywhere) and properties that are constant throughout the sample (meaning there is only one set of properties such as melting point, color, boiling point, etc. throughout the matter).
Are compounds and molecules the same?
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. An example of a molecule is ozone.