Checkpoint Review
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Easy
Lucia Tovar
Used 1+ times
FREE Resource
Student preview

26 questions
Show all answers
1.
FLASHCARD QUESTION
Front
How many different elements are in the chemical equation?
Back
4
2.
FLASHCARD QUESTION
Front
Which substance listed in the chart is made up of the most atoms? Carbonic acid, Nitric acid, Phosphoric acid, Sulfuric acid
Back
Phosphoric acid
3.
FLASHCARD QUESTION
Front
How many atoms of each element are in one molecule of 2-heptanone (CH₃C₄H₈COCH₃)?
Back
7 carbon atoms, 14 hydrogen atoms, and 1 oxygen atom
4.
FLASHCARD QUESTION
Front
What does the following model represent?
Back
compounds
5.
FLASHCARD QUESTION
Front
Do substances 2, 5, and 6 represent elements?
Back
True
6.
FLASHCARD QUESTION
Front
Which process describes only a physical change?
Back
Water evaporating from salt water
7.
FLASHCARD QUESTION
Front
Which student is correct based on the test with red food coloring in water?
Back
Student 2, because no new substance was formed when there was a color change
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