<p> WHATS THE MATTER – REVIEW FOR UNIT TEST</p><p>1. Define matter </p><p>2. Name the 4 states of matter and be able to draw how they look</p><p>3. Be able to use the terms to describe changing states of matter.</p><p>Solid ------ Liquid ------ Gas</p><p>4. Be able to tell apart physical and chemical properties matches burn density of a liquid color of money metal rusts shape of a bottle explosive</p><p>5. Be able to tell apart physical and chemical changes ice melts cut up paper your bike rusts baking bread shaping clay salt dissolves in water</p><p>6. Know atomic structure – </p><p> nucleus contains ______(+) and ______(0)</p><p> shells or cloud contains ______(-)</p><p>7. Understand that atoms are the building blocks of matter. There are 118 different atoms. Each type of atom has different number of protons- that is what makes them different! These are the elements and they are listed on the periodic table. Be able to use the periodic table. </p><p>Ag = ______Ne = ______</p><p>AN 8 = ______AN 10 = ______</p><p>AM 4 = ______AM 16 = ______</p><p>How many neutrons does Carbon have? ______Rememeber AN = # of protons AM = Protons + Neutrons Neutrons = AM – AN</p><p>Electrons = # of protons</p><p>9. Be able to identify or use a Bohr’s Model of an atom</p><p>10. Understand that atoms that are chemically bound (stuck together) form molecules of a compound. The compound has NEW chemical and physical properties that are different than the elements that it is made up of.</p><p>H20 = H- hydrogen 2 atoms O-Oxygen 1 atom</p><p>NaHCO3 = ______</p><p>10. A chemical formula is an equation that shows what substances you start with (reactants) and what substances you end with (products) in a chemical reaction. The equation must be balanced with the same number of atoms of each element on each side.</p><p>___+Na + ____ Cl2  ____ NaCl</p><p>11. Know the difference between a substance and a mixture (homogeneous and heterogeneous)</p><p>12. Know the basic difference between an acid and a base</p><p>13. Law of Conservation of Matter states that matter can not be created nor destroyed only</p><p>______! 14. Know the types of chemical reactions A + B  AB AB  A + B </p><p>AX + B  BX + A AX + BY  BX + AY</p><p>OR – hint</p><p>Be able to apply changing state of matter to a real life example (like ice melting)</p><p>Be able to compare and contrast physical and chemical properties and changes</p><p>Be able to compare and contrast elements and compounds</p><p>Be able to use the law of conservation of matter to explain what happens in a chemical reaction </p>