Chemistry by Aliya Hastings https://padlet.com/hastingsaliya/76taij6kbn3gyy7u en-us 2020-04-30 07:38:09 UTC 2020-05-04 08:16:46 UTC hello@padlet.com https://padlet.net/icons/png/1f4a5.png Properties hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547358373 All metals have properties they share, but they also have their own properties.]]> 2020-05-03 18:26:58 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547358373 Aluminium hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547362835 Used for -
Cooking foil, Drink cans, Coating CDs and DVDs

Why?
Non-toxic, Resistant to corrosion, light, can be a thin film]]> 2020-05-03 18:29:55 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547362835 Copper hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547365606 Used for -
Electrical wiring, Saucepans and Saucepan bases

Why?
One of the best conductors of electricity, ductile, malleable, conducts heat, unreactive, tough]]> 2020-05-03 18:31:31 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547365606 Zinc hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547368314 Used for -
Protecting steel from rust, coating or galvanizing iron and steel, torch batteries

Why?
sacrificial protection, resists corrosion, gives a current]]> 2020-05-03 18:33:23 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547368314 Alloys hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547372847 Alloys are two or more metals mixed together, changing the properties and making it more useful]]> 2020-05-03 18:36:19 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547372847 Properties change hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547380684 When metals are turned into an alloy, the new atoms enter the lattice, making it stronger. Some alloys can be more resistant to corrosion too.
More than one metal can be mixed in the alloy and there can be different amounts of some of the metals the alloy.]]> 2020-05-03 18:41:19 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547380684 Examples of alloys hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547384354 Couple examples:
Brass - 70% copper 30% zinc, Harder than copper, does not corrode. Used for musical instruments, ornaments and door knobs.

Aluminium (alloy 7075 TF) - 90.25% aluminium 6% zinc 2.5% magnesium 1.25 copper, light but strong, does not corrode. Used for aircrafts.]]> 2020-05-03 18:43:27 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547384354 Steel making hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547388860 Steels are made using the molten iron from the blast furnace. Molten iron is impure so a basic oxygen converter is turned on to react with the carbon, sulfur and phosphorus. Then calcium oxide is added to get rid of the silicon dioxide and phosphorus oxide. Then other metals may be added to form Steel alloys.]]> 2020-05-03 18:46:28 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547388860 What are steels hastingsaliya https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547390651 Steel is many alloys of iron, as iron by itself is weak and rusts easily. Some metals iron is mixed with are nickel an chromium, and it can be mixed with carbon.]]> 2020-05-03 18:47:39 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547390651 Presentation is fine, but needs more organisation or illustrations maybe (and yes, I know that you didn't have much time) artem_nenashev https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547455950 (Artem)]]> 2020-05-03 19:28:01 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/547455950 I appreciate that it is clear and grouped into different concepts. juliajodla1 https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/548308674 Julia]]> 2020-05-04 06:57:45 UTC https://padlet.com/hastingsaliya/76taij6kbn3gyy7u/wish/548308674