10 questions Chem. Word Scramble
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Question for Test | Answers to questions |
_____ Na + _____ H2O --> _____ NaOH + ____ H | 2 Na + 2 H2O ---> 2 NaOH + 2 H |
What does the pH scale measure? | How neutral, acidic or basic solution is. |
The lower the pH the ______ the acid. | Stronger/More acidic |
What are three ways to identify an acid. | Sour taste, reaction to metals like zinc and reaction with bases. |
What occurs in a chemical equation? | Change in color, change in shape, formation of a precipitate, formation of a gas. |
What does the arrow stand for in a chemical equation? | Yield or produce. |
What are reactants? | Substances that are changing in a chemical equation. |
What are the four physical properties we use to help identify substances? | Boiling Point, Melting Point, Density and Color. |
What is the boiling point for pure water at sea level? | 100 degrees Celsius or 212 degrees Fahrenheit |
Explain how "change in size or shape" is a physical change. | The size or shape is changing but not the composition of the substance. |
Created by:
jcason65
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