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Chapter 17
test
Question | Answer |
---|---|
What is an element? | An element is a material composed of only one kind of atom. |
Which one of these is an atom? | A?building blocks of elements. B)building blocks of matter. C)building blocks of protons and neutrons. |
What is Brownian motion? | Brownian motion is the perpetual jiggling of Brownian motion is particles that are just large enough to be seen. |
What is a compound? | A compound is a substance that is made of atoms of different elements combined in a fixed proportion. |
What is a chemical formula? | the chemical compound |
What is an element? | An element is a material composed of only one kind of atom. |
Which one of these is an atom? | A?building blocks of elements. B)building blocks of matter. C)building blocks of protons and neutrons. |
What is Brownian motion? | Brownian motion is the perpetual jiggling of Brownian motion is particles that are just large enough to be seen. |
What is a compound? | A compound is a substance that is made of atoms of different elements combined in a fixed proportion. |
What is a chemical formula? | the chemical formula is tells the proportion of each kind of atom. |