Physical and Chemical properties

Phases of Matter

Each phase of matter has its own chemical and physical properties. The phases of matter you need to know are:

  • Solid – a solid has a definite shape and volume
  • Liquid – a liquid has a definite volume, but can change shape
  • Gas – the shape and volume of a gas can change

Phase Changes

These phases of matter can change from one to another. Remember the definitions of the following phase changes:

  • Melting – melting occurs when a substance changes from a solid to a liquid
  • Boiling – boiling is when a substance changes from a liquid to a gas
  • Condensing – condensation is when a gas changes to a liquid
  • Freezing – freezing is when a liquid changes to a solid

Physical & Chemical Changes

The changes that take place in substances may be categorized in two classes:

  • Physical Change – does not produce a new substance (e.g., phase changes, crushing a can)
  • Chemical Change – produces a new substance (e.g., burning, rusting, photosynthesis)

Solutions

A solution results from combining two or more substances. Making a solution can produce either a physical or chemical change. You can tell them apart this way:

  • The original substances can be separated from one another if the solution produces only a physical change.
  • The original substances cannot be separated from one another if a chemical change took place.

Here are some other examples of chemical reactions:

raw egg raw egg becomes cooked egg
cooked egg
cake batter cake mix
becomes cake
angel food cake
newspaper paper becomes ash
ashes
new vehicle steel becomes rust
old, wrecked and rusted  vehicle

Soal-soal persiapan Ulangan bab perubahan fisika dan perubahan kimia serta sifat fisika dan sifat kimia dapat di download di bawah ini

Click Here

10 Tanggapan to “Physical and Chemical properties”

  1. Elsa Says:

    .thx pak soal .a 🙂

  2. Aprilia Silvha 7dhE Says:

    konnichiwa, Wida-sensei…
    may I ask? is true if the next test is only about ‘Physical & Chemical Change?
    Artinya: mai-je poser? est vrai si le test suivant est seulement d’environ «Physical & Chemical Change?

  3. asty Says:

    Thanx ea pak soalny, q jd lbh gmpng untk bljar : )

  4. febby valentcia Says:

    pelajaran fisika di smp 1 cilacap sudah sampai mana pak?

  5. linda ayumna 7ge Says:

    pak wida , thanks ya rangkuman sama soalnya🙂
    linda publikasiin ke temen2 , ga apa kan ?
    besok nileku seratus ! amiin

  6. linda ayumna 7ge Says:

    kata ka rafi ada soal yg untuk kelas delapan ?

  7. aditya bagaskara 7de Says:

    halo pak wida …. makasih tas soalnya ya pak … jd lebih gampang belajarnyo … salam bintang …😀

  8. ocha Says:

    .makaciiii soalnya pakk..

  9. anindhiya 7 ghe Says:

    makasih banget yaa pak buat soal sama rangkumannya🙂

  10. gading .w Says:

    thank’s beutdh ya…,
    mudah di paham’i…..,


Tinggalkan Balasan

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout / Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout / Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout / Ubah )

Foto Google+

You are commenting using your Google+ account. Logout / Ubah )

Connecting to %s

%d blogger menyukai ini: