Topics 1-4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the 4 stages a chemical reaction has taken place? | effervescence, temperature change, colour change and precipitation is formed.
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| What if a compound has ite/ate at the end of it, what does it mean? | contains oxygen
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| What does a solvent do? | dissolves a solute to form a solution
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| Name 4 ways to speed up a chemical reaction | higher temps, more concentrated chemicals, increase surface area and add a catalyst
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| What is a catalyst? | increases surface area but remains unchanged
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| What are the 3 parts of an atom and where are they found? | protons- positive, found in nucleas neutron- neutral, found in nucleas electron- negative, found orbiting nucleas
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| How do you calculate the mass number? | protons added to neutrons
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| What is the atomic number the same as? | number of protons and number of electrons
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| What is an ion? | a charged atom or molecule
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| How does an atom become an ion? | loosing electrons (positive) gaining electrons (negative)
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| What is an isotope? | has the same atomic number but different mass number
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| What is the relative atomic mass? | average weight of a number of isotopes
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| What is a covalent bond? | overlap of 2 half filled negative electron pair clouds held together by the common attraction to 2 positive nuclei!!!! OOooohhhh yeeeaaah!
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| Name at least of the 3 diatomic atoms | Flourine, chlorine, bromine, iodine, oxygen and nitrogen
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| How do you find the valency? | group number
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| Why are noble gases so unreactive? | because they have a full outer orbital
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| How does an atom become stable? | by gaining or loosing electrons to give them a full orbital.
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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.
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Created by:
clairegartland
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