https://padlet.com/contriba0001/e29k8zlbz1h5 Iban Contreras Period 6 en-us 2019-01-08 20:26:02 UTC 2026-01-17 16:33:40 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Lightdecrease.png contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318558160 Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.]]> 2019-01-08 20:37:07 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318558160 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318560004 Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.]]> 2019-01-08 20:40:12 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318560004 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318560736 There are several differences between a physical and chemical change in matter or substances. A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.]]> 2019-01-08 20:41:29 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318560736 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318561890 - Color
- Density
- Volume
- Mass
- Boiling Point
- Melting Point ]]> 2019-01-08 20:43:35 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318561890 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318565250 Gold Overall weight (Mass) is 12.4 kg]]> 2019-01-08 20:50:28 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318565250 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318567248 A Single Quarter Overall Weight (Mass) Is 5.670 grams]]> 2019-01-08 20:55:35 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318567248 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318569650 - Reactivity 
- Toxicity 
- Flammability 
- Heat Of Combustion 
- Chemical Stability ]]> 2019-01-08 21:01:37 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318569650 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318570573 Air Re-fresheners have over 20 Toxic chemicals

]]> 2019-01-08 21:04:06 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/318570573 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320400028 Gas Is very Flammable and it's Methane Concentration level is 5-10% Which is Flammability Level is Level 2]]> 2019-01-14 17:03:59 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320400028 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320401942

Boiling water.

Mixing sand and water.

Breaking a glass.

Dissolving sugar and water.

Crushing a pen

]]> 2019-01-14 17:07:22 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320401942 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320402359 https://www.youtube.com/watch?v=w5Y452eiHC8

https://www.youtube.com/watch?v=cmrj2X061FM ]]> 2019-01-14 17:08:05 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320402359 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320408113

Mixing acid and base.

Digesting food.

Cooking an egg.

Rusting of Iorn

Baking a cake

]]> 2019-01-14 17:17:15 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320408113 contriba0001 https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320410113 https://www.youtube.com/watch?v=vW9of4JYHYO

https://www.youtube.com/watch?v=ANOtoVBAzDU]]> 2019-01-14 17:20:34 UTC https://padlet.com/contriba0001/e29k8zlbz1h5/wish/320410113