--kemia
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
---|---|---|---|---|---|
Exothermic | Reactions, where bonds in the products are stronger than bonds in the reactants-> energy (heat) is given out-> HOT!
🗑
|
||||
Endothermic | reactions, where bonds in the reactants are stronger than bonds in the products. Energy (heat) is absorbed from the surroundings,->COLD!
🗑
|
||||
Chemical kinetics | Study of the factors affecting the rate of chemical reaction
🗑
|
||||
Rate of a chemical reaction | increase in the concentration of one of the products per unit time (dm^3/mol/s)
🗑
|
||||
When atom reaches the octet, it achieves.... | ....gas configuration
🗑
|
||||
Ionic compound | electrons are transferred from one atom to another to to form ions with complete outer shell
🗑
|
||||
Ion | An atom/molecule when its total number of electrons is not the same with protons
🗑
|
||||
Isotopes | Same elements, same number of protons, different numbers of neutrons
🗑
|
||||
Ionic compound | positive and negative ions are attracted to each other by STRONG ELECTROSTATIC FORCES
🗑
|
||||
Cation | positively charged ions
🗑
|
||||
Anion | negatively charged ions
🗑
|
||||
Ionic compounds have | high melting points
high attraction (requires lot of energy to separate them)
high boiling points
good conductors of electricity
most are soluble with water
🗑
|
||||
The overall cahrge of a compound? | Zero
🗑
|
||||
Elctronegativity | The a relative measure of an atom's ability to attract electrons to itself
🗑
|
||||
Noble gases have reached.. | .. the octet
🗑
|
||||
Covalent bonding | sharing of one or more electron pairs so that each atom in the molecule achieves an inert gas configuration (octet)
🗑
|
||||
Covalent compounds have | low melting points
low boiling points
can be gas, liquid or solid
poor conductors of electricity
most are not soluble with water
🗑
|
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:
blueberrykh
Popular Chemistry sets