10 QUESTIONS FOR CHEM. TEST Carol-Ann Copeland
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| _____ 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.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
jcason65
Popular Science sets