Purpose:
To detect and detect belongingss of chemical and physical belongingss of H2O. Cu sulphate pulverization. Fe ( wool ) . Na carbonate. hydrochloric acid. and Mg and how they react with one another. Hypothesis:

We can acknowledge physical and chemical alterations from the manner substances react with one another. It’s a physical alteration when its size. form. province. solution alterations and it’s frequently easy to change by reversal. Chemical alterations is when there is a alteration of colour. precipitate forming. heat or light being given off. or alteration in olfactory property and it’s frequently hard to change by reversal. Observations:

Part 1: Copper ( II ) Sulfate and Water
Properties of H2O Clear. odorless. tasteless. and is a liquid. Properties of Cu ( II ) sulphate Blue. pulverization. and is a solid. After we put some Cu ( II ) sulphate in the trial tubing followed by 4cm of H2O the H2O turned sort of blue. so when we put the cap on the trial tubing and agitate it. the Cu sulphate dissolved in the H2O and it turned bluer. I besides observed that after agitating there were still pieces of the Cu sulphate at the underside of the trial tubing. This alteration was a physical alteration because there was a alteration in colour ( chemical ) and a alteration if signifier ( physical ) . I would reason that this is a physical alteration because you could easy acquire some of the Cu ( II ) sulfate back by heating it up and allow the H2O evaporate. besides no new substance was found when blending those two substances together. Although the colour changed it’s still reversible. Part 2: Copper ( II ) Sulfate Mixture and Iron ( wool )

Properties of Copper ( II ) Sulfate and Water Blue. and is a liquid. Properties of Iron ( steel-wool ) wire-like. grey. fluffy. looks like hair ball. and is a solid. After we gently placed the Fe ( steel-wool ) in the Cu ( II ) sulphate and H2O mixture nil happened. After a few proceedingss the wool lost its colour and turned ruddy. it merely settled at the underside of the trial tubing. The piece of Fe was non the lone thing that lost its colour. the Cu ( II ) sulphate and H2O mixture besides lost its colour it turned yellowish-greenish alternatively of bluish. it looked like it displaced the Cu to do Cu metal. and the colour of the liquid changed likely because the colour of the steel wool assorted with the blue liquid to make a gross outing xanthous green colour. This is a chemical alteration because the liquid and the steel wool both changed colour. Besides. the steel Fe changed from that to some kind of Cu metal. In add-on if it’s possible to change by reversal it would be extremely hard. Separate 3: Copper ( II ) Sulfate and Sodium Carbonate

Properties of balance of Copper ( II ) Sulfate and Water Blue. and is a liquid. Properties of Sodium Carbonate clear and is a liquid.
When we put the Na carbonate in the remainder of the bluish liquid solution and agitate it. it turned into a lighter bluish colour but besides looked really thick. cloudy. and stills a liquid. There were some remains along the glass of the trial tubing. I besides observed that you can’t see through the bluish liquid now because it’s thicker. This is a chemical alteration because a new substance was created. the colour changed. it became thicker and it’s extremely hard to divide the two substances from one another. Therefore it is considered to be a chemical alteration. Part 4: Hydrochloric Acid and Magnesium

Properties of Hydrochloric Acid clear and is a liquid.
Properties of Magnesium Ag. visible radiation. shiny. pliable and is a solid. When we had the acid in the trial tubing and added the Mg the acid started foaming and bubbles were coming out of the Mg. I besides saw that the Mg sunk to the underside. The Mg lost its colour a spot and black parts of the Mg were drifting about in the acid. Besides the acid turned cloudy. After a twosome of proceedingss there was steam at the top of the trial tubing and the trial tubing got warmer. there was besides vapor along the interior of the glass ( top ) . The underside of the trial tubing was clear. but the top was cloudy. The Mg continued to do bubbles and fizz. the bubbles were traveling upward and some stuck to the top and side of the category. it looks like Sprite. It was foaming for a long clip. but I think by the clip it finishes there would be nil left of the Mg. This is a chemical alteration because a H gas was released and foaming occurred. The Mg thread would fade out in the acid and it would be truly hard to acquire it back. Therefore this is a chemical alteration it is about impossible to change by reversal. Decision:

My hypothesis for calculating out how we can acknowledge physical and chemical alteration was right. 14. a ) There were many alterations. like colour alteration. signifier alteration. heat being given off. and foaming. This supports my hypothesis because the alterations to the substances that I observed helped me calculate out if the alteration is physical or chemical. B ) Part 1 province alteration from solid to liquid.

Part 2 none.
Part 3 thickness.
Part 4 none.
degree Celsius ) The hints we observed were:
– A new colour appeared
– Bubbles of gas are formed
– Heat or light given off
– The alteration is hard to change by reversal
vitamin D ) Changes that might be reversed is from when the Cu ( II ) sulfate dissolved in the H2O by heating it and allowing the H2O evaporate. so you can chill the Cu sulfate down and do it a pulverization. Another manner to decide a alteration is the thickness alteration merely by adding H2O.