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chapter 1 review
atoms and matter
Question | Answer |
---|---|
A mixture in which two or more substances are evenly mixed but not bonded-together. | Homogeneous mixture. |
A mixture in which the substances are not evenly mixed. | Heterogeneous mixture. |
Two or more atoms that are together by chemical bonds and act as a unit. | Molecule. |
Matter with a composition that is always the same. | Substance. |
Anything that has mass or takes up space. | Matter. |
Substance made of only one kind of atom. | Element. |
A small particle that is the building block of matter. | Atom. |
Substance made of two or more elements that are chemically joined in a specific combination. | Compound. |
Gravity is matter because it does not have mass and volume? | False. |
Each type of atom has a different number of smaller particles? | True |
The composition of a substance is always the same? | False. |
The substance in a mixture are bonded together? | True. |
All atoms of an element are alike? | False. |
The atom in a molecule are held together by chemical bonds? | True. |
Elements can be classified as metals, nonmetals, and metalloids? | True. |
Compounds are made of atoms of the same element bonded together. | true. |
Soda is an example of a heterogeneous mixture, or a mixture in which two or more substances are evenly mixed but not bonded together. | true. |
Matter can be classified as... | Substance and Mixtures. |
Substance can be classified as... | Compounds and elements |
Mixtures are classified as... | Heterogeneous and Homogeneous. |
What is an atom? | An atom is the basic unit of matter. |
What is an element? | it is a substance. |
name three elements. | gold silver oxygen |
What is the relationship among atoms | they all have to do with matter. |
what is water? | H2o |
How are atoms related to compounds and elements. | they all make up an atom of some sort. |