п»їMarch 18, 2012
Subject: Types of Chemical Reactions
It turned a reddish dark brown and the liquefied went clear.
The color change proved it was a chemical substance change.
The reaction turned yellow and it separated and create a fog. The solid formed precipitation and had a color change through the reaction showing it as a chemical transform. #3
There was clearly green smoke and the crystals converted black. The green liquid turned dark green and continued to sizzle with water which usually turned the complete reaction to a liquid. The evidence is in the color change and once it created smoke. In addition, it sizzled up which demonstrated it to become chemical alter. #4
It bubbled very clear and during the response continued to generate a popping noise. It also fizzed up and created a gas. When it bubbled and converted into a gas was the data to identify that as a chemical substance change. As well when it came up with the popping audio when the stay was placed in the pipe. #5
The turned black and created smoke cigars rings. That made the glow adhere ignite backside on fire. The chemical modify was because it bubbled to produce a gas. Likewise when the effect created a fire was if a chemical alter was present.
The lab went well and types of errors had been minimal. Test out tube cases were used instead of a grip set up for Reaction #3. MnO2 was used as a substitute after which in Response #5 it was used as being a catalyst. Heating was not necessary. Reactions: #1) Fe(s) + Cu+2So4(aq) в†’Cu(s) +FeSo4(aq) -Single Replacement #2) Pb+2(No3)2(aq) +K+1I-1(aq) в†’Pb+2I-1+K+1NO3-1(aq) -Double Replacement #3) CuCl2в€™2H2Oв†’Cu+2Cl2-1+H2O -Decomposition #4) Mg(s)+2H+1 2Cl-1(aq)в†’Mg+2Cl-12(aq)+H2(g) -Single Replacement #5) 3H2O2(aq)в†’3H2O(l)+O2(g)...