

Understanding pH, Mass-Energy, and Variables
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Others
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KG
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Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
A solution with pH of 7 is considered neutral. What does this mean?
Back
The solution has the same number of hydrogen ions and hydroxide.
2.
FLASHCARD QUESTION
Front
Mass is the same thing that energy
Back
False
3.
FLASHCARD QUESTION
Front
The variable that is being measured is...
Back
dependent variable
4.
FLASHCARD QUESTION
Front
In beaker 1 (no heat added) Jamie observed crystals forming and growing on the string and the sugar water slowly evaporates. How could you describe the changes?
Back
The sugar and the water are going through a physical change.
5.
FLASHCARD QUESTION
Front
If you run an experiment what is the best way to present your findings? Options: Highlight only unexpected results, ignoring how they relate to the hypothesis. Have the results support the hypothesis. Organize the data to show how the results support the hypothesis clearly and accurately. Highlight only unexpected results, ignoring how they relate to the hypothesis.
Back
Have the results support the hypothesis.
6.
FLASHCARD QUESTION
Front
Sodium (Na) reacts with chlorine (Cl) to form table salt. What would happen if potassium (K) is mixed with chlorine (Cl)?
Back
Mixing K with Cl would also make a salt since they are in the same group.
7.
FLASHCARD QUESTION
Front
The law of conservation of mass states
Back
mass cannot be created or destroyed but it can be changed
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