building blocks 1a int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021
TRANSCRIPT
![Page 1: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/1.jpg)
Building Blocks 1a Int 2
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15
22 23 24 25 26
16 17 18 19 20 21
![Page 2: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/2.jpg)
What is a group in the
Periodic Table?
A column of elements
![Page 3: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/3.jpg)
What is a period in the Periodic Table?
A row of elements
![Page 4: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/4.jpg)
Why are elements placed in the same group ?
They have similar chemical properties.
They have the same number of outer electrons.
![Page 5: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/5.jpg)
Give the family name for the elements found in group 1.
Alkali metals
![Page 6: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/6.jpg)
In which group do the halogens belong to?
Group 7
![Page 7: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/7.jpg)
Give the family name for the elements found in group 0.
Noble gases
![Page 8: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/8.jpg)
What name is given to the elements found between group 2 and group 3 in
the Periodic Table?
Transition metals
![Page 9: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/9.jpg)
What does the name ending in -ide indicate about a
compound?
Two elements joined together
![Page 10: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/10.jpg)
What does the name ending in -ate or ite indicate about a
compound?
3 elements joined together - one of which
is oxygen
![Page 11: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/11.jpg)
Name the elements present in sodium silicate.
Sodium, silicon and oxygen
![Page 12: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/12.jpg)
Name the elements present in sodium chloride.
Sodium and chlorine
![Page 13: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/13.jpg)
Name the elements present in calcium hydroxide.
Calcium, hydrogen and oxygen.
![Page 14: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/14.jpg)
What is the difference between a mixture and a compound?
Mixture - different atoms not
chemically joined.
Compound - different atoms joined together
![Page 15: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/15.jpg)
What is an element?
A substance made up of one type of atom.
![Page 16: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/16.jpg)
What is always formed in a chemical reaction?
New substance
![Page 17: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/17.jpg)
Name the type of chemical reaction which releases heat.
Exothermic
![Page 18: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/18.jpg)
In an endothermic reaction do the reactants or products have more
energy?
Products - energy taken in
reactants
products
![Page 19: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/19.jpg)
In an exothermic reaction do the products have more or less energy than the reactants?
Less - energy is released
reactants
products
![Page 20: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/20.jpg)
What changes indicate a chemical reaction has taken
place?
Colour change, energy change, gas given off, effervescence, precipitation
![Page 21: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/21.jpg)
What is a precipitation reaction?
Two solutions(aq) react together to form a solid (s)
Ba(NO3)2(aq) + Na2 SO4(aq) BaSO4(s) + NaNO3(aq)
the precipitate
![Page 22: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/22.jpg)
Is air a mixture of gases or a compound?
A mixture of gases
![Page 23: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/23.jpg)
What is the percentage of nitrogen and oxygen in air?
Nitrogen ~ 80%
Oxygen ~ 20%
![Page 24: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/24.jpg)
What is the test for oxygen gas?
Relights a glowing splint
![Page 25: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/25.jpg)
Why is the test for oxygen in air not positive?
There is not enough oxygen in the air
![Page 26: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/26.jpg)
What is meant by the following terms?solute, solvent, solution and saturated
Solute - a substance which dissolves in a liquid (soluble)
Solvent - a liquid in which a solid dissolves
Solution - a mixture formed when a solute dissolves in a solvent
Saturated - a solution in which no more substance can dissolve.
![Page 27: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/27.jpg)
Which has a lower concentration of dissolved substance, a dilute or
concentrated solution?
A dilute solution.
![Page 28: Building Blocks 1a Int 2 1234 567 89 10 111213 14 15 22 23242526 161718192021](https://reader035.vdocuments.net/reader035/viewer/2022062801/56649e675503460f94b61efa/html5/thumbnails/28.jpg)
Building Blocks 1a Int 2
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15
22 23 24 25 26
16 17 18 19 20 21