What is it called when 2 or more elements?
A combination of two or more elements chemically combined is a compound .
What are the 2 classes of matter?
Matter can be classified into several categories. Two broad categories are mixtures and pure substances. A pure substance has a constant composition.
Is a combination of two or more atoms that are held together?
When two or more atoms are joined together chemically then a molecule is formed. The combination of atoms that are of two or different elements forms a compound. Every compound is a molecule but not every molecule is a compound. Molecular compounds are the compounds that exist as molecules.
What are a group of 2 or more bonded atoms called?
Explanation: A compound is “a substance formed when two or more chemical elements are chemically bonded together.”
What are the two broad categories of matter?
We can classify matter into several categories. Two broad categories are mixtures and pure substances. A pure substance has a constant composition. All specimens of a pure substance have exactly the same makeup and properties.
What kind of mixture is composed of two types of matter?
A mixture is composed of two or more types of matter that can be present in varying amounts and can be separated by physical changes, such as evaporation (you will learn more about this later). A mixture with a composition that varies from point to point is called a heterogeneous mixture.
How is matter defined in terms of its physical state?
Classify matter as an element, compound, homogeneous mixture, or heterogeneous mixture with regard to its physical state and composition Matter is defined as anything that occupies space and has mass, and it is all around us.
Which is the basic building block of matter?
Matter is anything that occupies space and has mass. The basic building block of matter is the atom, the smallest unit of an element that can enter into combinations with atoms of the same or other elements. In many substances, atoms are combined into molecules.