Pershing Chem Chpt 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What things do we know about atoms? (how big, movement, where are they found, do they bump other atoms?) | They are tiny. They are always moving. They are found in everything. They bump into other atoms
🗑
|
||||
| How do the particles move in a gas? | quickly or fast
🗑
|
||||
| What kind of solid has particles in an orderly repeating pattern? | Crystalline solid
🗑
|
||||
| In what state are the particles packed close together and vibrate in place? | in a solid
🗑
|
||||
| What is different in maple syrup than in water? | its viscosity
🗑
|
||||
|
🗑
|
|||||
| What happens to the particles at higher temperatures? | the particles moved faster
🗑
|
||||
| Why can balloons be twisted into shapes? | the particles can be compressed or put in smaller areas
🗑
|
||||
| What does Charles's law tell us about the effect of temperature on the volume of a gas? | if you decrease the temperature, the volume decreases
🗑
|
||||
| Describe the particles in a volleyball that is under high pressure? | There are more particles and they are closer together. (if the pressure is decreased, there are less and the particles have more space
🗑
|
||||
| What does Boyle's law say? | in a gas, the volume of the gas is inversely related to pressure and the temperature does not change.
🗑
|
||||
| What is sublimation? | a substance going directly from a solid to a gas
🗑
|
||||
| What is vapor pressure? | pressure inside bubbles of boiling liquid
🗑
|
||||
| What is it called when a substance goes from a solid to a liquid? | melting
🗑
|
||||
| What is "change of state"? | the changing from one physical state to another
🗑
|
||||
| What is an endothermic change? | when energy is gained in a substance as it changes state
🗑
|
||||
| What is an exothermic change? | when energy is removed as a substance changes state
🗑
|
||||
| What is evaporation? | changing from liquid to a gas
🗑
|
||||
| What is it called when gas changes to a liquid? | condensation
🗑
|
||||
| What are the characteristics of the boiling state? | the changing of liquid to a gas throughout the liquid
🗑
|
||||
| What point is the same as the freezing point in water? | melting point
🗑
|
||||
| Why can someone smell something from across the room in a short period of time? | particles evaporate into the air
🗑
|
||||
| What is the opposite of evaporation? | condensation
🗑
|
||||
| What happens when the particles of dry ice gain energy? | an exothermic reaction takes place and the dry ice can enter the air
🗑
|
||||
| What happens in an exothermic change? | the substance looses energy and cools down
🗑
|
||||
| What is viscosity? | the resistance of a substance to flow
🗑
|
||||
| What state has a fixed volume but not a fixed shape? | a liquid
🗑
|
||||
| Describe the particles in a gas. | They are far apart and moving quickly
🗑
|
||||
| What is surface tension? | It describes the strength of the bonds between the molecules in a liquid.
🗑
|
||||
| The opposite of evaporation is... | condesation
🗑
|
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:
ellist
Popular Chemistry sets