https://padlet.com/ichaves/8vw0likkkdfy Lesson 1 from Chaper 5 en-us 2017-11-07 18:31:25 UTC 2017-11-13 16:25:51 UTC hello@padlet.com hbenavides https://padlet.com/ichaves/8vw0likkkdfy/wish/204519900 2017-11-07 18:39:44 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/204519900 dmora4 https://padlet.com/ichaves/8vw0likkkdfy/wish/204520658 Changes in matter can be described in terms of physical changes and chemical changes.

]]> 2017-11-07 18:41:15 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/204520658 hbenavides https://padlet.com/ichaves/8vw0likkkdfy/wish/205813820 Matter is often described by its characteristics, or properties, and how it changes. There are two kinds of matter...physical properties and chemical properties.]]> 2017-11-10 19:49:57 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/205813820 hbenavides https://padlet.com/ichaves/8vw0likkkdfy/wish/205824496 Chemical changes occur when existing bonds break and new bonds form]]> 2017-11-10 20:29:45 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/205824496 hbenavides https://padlet.com/ichaves/8vw0likkkdfy/wish/205824716 One way to detect chemical reactions is to observe changes in the physical properties of the materials. Changes in properties result when new substances are form. Sometimes physical changes give similar results as chemical reactions.]]> 2017-11-10 20:31:00 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/205824716 hbenavides https://padlet.com/ichaves/8vw0likkkdfy/wish/205825575 In an exothermic reaction, the energy released as the products form is greater than the energy required to break the bonds of the reactants. In an endothermic reaction, more energy is required to break the bonds of the reactants than is released by the formation of the products.]]> 2017-11-10 20:36:00 UTC https://padlet.com/ichaves/8vw0likkkdfy/wish/205825575