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Tuesday 16 February 2021

Physical or Chemical Change

Physical or Chemical Change

( Heating Zn0 ) 

Hypothesis ~ Explosion = Chemical Change

Equipment ~ Sample of Zn0 ( Zinc Oxide )

                      Heat Source

                      Scale

                      Heat Proof Container ~ Evaporating Dish

                      Tongs

                      Heat Proof Mat

Method ~  1. Get Same of Zn0 in an Evaporating Dish 

                  2. Weigh the Zn0 & Container ~ Record Weight

                  3. Heat Container & Zn0 on Hot Plate

                  4. Observe any changes ~ Use phone for before & after photos ( Video? )

                  5. Take of Heat & put on heat proof mat

                  6. Let Cool ~ Observe - Photos

                  7. Re Weigh

Results ~ What Happened? ~ The weight of the substance didn't change at all, there wasn't a big colour change but when it cooled down it went back to the orignal colour

Conclusion ~ Explain the Results ~ The weight of the powder and absorbing the heat, never made the colour change at all so that makes it a Physical Change

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