Elements and Compounds
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.
2.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements are chemically bonded together.
3.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically combined.
4.
FLASHCARD QUESTION
Front
How many atoms are in H2SO4?
Back
There are 7 atoms in H2SO4 (2 Hydrogen, 1 Sulfur, 4 Oxygen).
5.
FLASHCARD QUESTION
Front
What is the periodic table?
Back
The periodic table is a tabular arrangement of all known elements, organized by their atomic number, electron configuration, and recurring chemical properties.
6.
FLASHCARD QUESTION
Front
What is an atom?
Back
An atom is the smallest unit of matter that retains the properties of an element.
7.
FLASHCARD QUESTION
Front
What is the difference between an atom and a molecule?
Back
An atom is a single unit of an element, while a molecule is a group of two or more atoms bonded together.
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