Matter and Chemical Change PDF

Matter and Chemical Change Unit B - Section 1.1 + 1.2  Quick Refresher! Which of the following is not a state of matter?  Pure Substances ELEMENTS Pure substances only contain one type of particle. 2 types: Elements on the periodic t...

Matter and Chemical Change Unit B - Section 1.1 + 1.2  Quick Refresher! Which of the following is not a state of matter?  Pure Substances ELEMENTS Pure substances only contain one type of particle. 2 types: Elements on the periodic table → Gold, Carbon, Oxygen COMPOUNDS Compounds → Every molecule looks the exact same. (H2O, CO2, etc.)  Mixtures MECHANICAL MIXTURE Substances that are not pure are mixtures. Mechanical: Have visibly different components. → Also known as heterogenous mixtures SOLUTION Solutions: Look like one substances but are made of different particles. → Also known as homogeneous mixtures  Other Types of Mixtures Suspensions: cloudy mixtures where tiny particles of one substance are suspended within another. They separate over time. → Tomato juice Colloids: similar to suspensions but they do not separate easily. → Milk Matter can be classified as one of 3 states: -solid -liquid -gas To change the state of a substance we must add or remove energy.  Properties All types of matter have their own properties. There are 2 types of properties: -Physical -Chemical  Physical Properties Physical properties describe the appearance and structure of the substance. Melting Point Boiling Point Hardness Malleability Ductility Crystal Shape Solubility Density Conductivity Colour Lustre  Chemical Properties Chemical properties describe how substances interact with other substances.  Check in! What is the change from solid to gas called?  One More... A student explains that opened a vial of clear liquid and upon contact with air it immediately burst into flames. What he is describing is an example of what type of property? Check and Reflect Page 104- #1-10 Do not do #11