Table of Contents
- 1 Why do elements lose their properties in a compound?
- 2 When elements join to form compounds what they lose?
- 3 Do compounds lose or retain their identities?
- 4 Do substances lose their identity in a mixture?
- 5 When elements are physically combined in a mixture Do they retain or lose their properties?
- 6 When elements are combined and lose their original properties and get new ones these elements have formed a?
- 7 What kind of compounds do elements react with?
- 8 Why are elements cannot be broken down into simpler substances?
Why do elements lose their properties in a compound?
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. The smallest identifiable unit of a compound is a(n) molecule which is made up of atoms which are chemically bonded. 4.
When elements join to form compounds what they lose?
Yes, when elements combine to form compounds, their individual properties are lost. In comparison, elements retain some (or many) of their property when they are mixed to form a mixture. For example, a common compound such as water is made up of 2 elements hydrogen and oxygen, both of which…
What happens when elements combine to form compounds?
When two distinct elements are chemically combined—i.e., chemical bonds form between their atoms—the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).
Do compounds lose or retain their identities?
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.
Do substances lose their identity in a mixture?
In a mixture, the substances (lose(retain their identities. In a mixture the substances involved (can cannot) be separated by a simple physical process. In a compound the elements involved (can/cannot) be separated by a simple physical process because the elements are (physically combined/chemically bonded).
What happens when atoms combine?
When atoms combine, they share their outermost electrons to create more sustainable energy states. This sharing bonds the atoms into an ionic structure or a molecule.
When elements are physically combined in a mixture Do they retain or lose their properties?
A mixture (is is not) a chemical combining of substances. 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. 3.
When elements are combined and lose their original properties and get new ones these elements have formed a?
When two or more elements combine to form a new substance, it is called a compound. There are many different types of compounds, because atoms of elements combine in many different ways to form different compounds. Examples include water (H2O) and table salt (NaCl). The smallest part of a compound is a molecule.
What happens when elements combine to form a compound?
Yes, when elements combine to form compounds, their individual properties are lost. In comparison, elements retain some (or many) of their property when they are mixed to form a mixture. For example, a common compound such as water is made up of 2 elements hydrogen and oxygen, both of which are gases, yet water is liquid.
What kind of compounds do elements react with?
Elements combine to form chemical compounds that are often divided into two categories. Metals often react with nonmetals to form ionic compounds . These compounds are composed of positive and negative ions formed by adding or subtracting electrons from neutral atoms and molecules.
Why are elements cannot be broken down into simpler substances?
Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P4) or sulfur (S8) cannot be broken down into simpler substances by these reactions. Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid.
How is the number of atoms in a compound indicated?
The shorthand notation for a compound describes the number of atoms of each element, which is indicated by a subscript written after the symbol for the element. By convention, no subscript is written when a molecule contains only one atom of an element. Thus, water is H 2O and carbon dioxide is CO 2.