Chemistry unit project

1. Chemistry unit project By Abdullah, meale 709 Ms.azcona

2. Matter what is it? • Matter is everything around you. Matter is anything that are made up of atoms and molecules. Matter is anything that has mass to fill up an object of what it is talking up. Matter is also related to the light and electromagnetic radiation. Even though matter can be found all over the universe you would find it in three different forms and they would be solid liquid and gas.

3. States of matter what are they? • Solid-Solids are usually hard because their molecules have been packed together.  • Gas-Gas is everywhere. There is something called the atmosphere. That's a big layer of gas that surrounds the Earth. Molecules move really fast • Liquid-Water is a liquid. Your blood is a liquid. Liquids are an in-between state of matter. They can be found in between the solid and gas states. Molecules move fast but slower then a gas.

4. Five examples for each state of matter • solid-ice, brick, rock, book, pen • Liquid-water,kool-aid,ocean water,tea,lemon juice • gas-Oxygen, Argon, Nitrogen, Acetylen, Hydrogen

5. Physical and chemical? • Chemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. These changes are chemical(next slide) • Vs • Physical change rearranges molecules but doesn't affect their internal structures. Some examples of physical change are(next slide)

6. 5 ex: of Physical and chemical • Physical: whipping egg whites, Magnetizing a compass needle, dissolving sugar in water ,dicing potatoes • Chemical: baking bread, rusting iron, cooking eggs, milk turning bad, gasoline burning

7. Physical and chemical properties • physical properties are those that can be observed without changing the identity of the substance. The general properties of matter such as color, density, and hardness, are examples of these. • chemical properties are properties that determine how a substance changes into a completely different substance. Flammability is one way to determine if it is a chemical change

8. Properties of chemical and chemical • Physical-Density, Solubility, Conductivity, Mass ,Volume • Chemical- Mass, density, melting point, latent heat, conductivity.

9. Atom what are they? • Atom-If you want to build molecules, you will need elements. Each element is a little bit different from the rest. Those elements are the alphabet to the language of molecules. An atom is the basic unit of an element. An atom is a form of matter which may not be further broken down using any chemical means. A typical atom consists of protons, neutrons and electrons. Ex: calcium atoms, sodium, chlorine, and sulphur atoms

10. Gold elements • Protons=79 • Neutrons=118 • Electrons=79 • Classification=metal, solid • Elements name=gold • Element symbol=Au

11. What is an element • an element is a pure substance that cannot be broken down into any simpler substances by chemical methods. An element is the simplest kind of matter. Each element retains its own unique properties. For example, each element has its own atomic mass, and the number of protons and electrons for an element always remains the same, although the number of neutrons can be small.

12. 5 examples of an elements • Elements-lead, potassium, mercury, hydrogen, helium, oxygen, carbon, chlorine.

13. What is a compound? • A compound is made up of two or more types of elements (water and carbon dioxide) that are chemically combined in a set. They cannot be broken down into two or more simpler substances by physical means, only by chemical means. Properties of compounds are different from those of their elements. For example, salt is made up of two elements: chlorine, which is poisonous; and sodium, which reacts explosively with water. 

14. 5 ex: of compound • Compound – • water  • glass  • sugar  • salt  • and plastic

15. What is a periodic table. • The periodic table is a table of the chemical elements, showing the symbols for the elements, their full names, their atomic numbers and their mass number. It organizes them into groups and periods (columns and rows) based on their structure and properties. It is called "the periodic table" because the horizontal rows are named "periods." 

16. Substances and mixture? • A substance is pure- it can't be broken down using • Chemical processes  • A mixture can be separated using physical processes.  • A mixture is a combination of substances with. A substance has to be separated by using chemical needs and a mixture has to be separated by physical needs.

17. Heterogeneous and homogenous? • Heterogeneous-A Heterogeneous mix is unevenly mixed because you could see what ever you have mixed together like iron and sand you could see the iron and sand • Homogenous-A Homogenous mixture is evenly mixed because you can not see what you just mixed like sugar in water because you can see the sugar in the water but you can taste it.

18. Heterogeneous and homogenous 5 examples • Heterogeneous-sand with water, iron with water, iron and sand, paper with water, • Homogenous-salt with water, sugar with water, tea, lemon juice.

19. Solutions what are they? • Solutions- A solution is a mixture of one substance dissolved in another so the properties are the same throughout. A solution is composed of a solute and the solvent. • Solvent-substances that dissolves the solute • Solute –substance the dissloved

20. Solutions 5 examples • Solvent-water, lemon juice, co2 gas. • Solute-powder, salt, tea powder, kool-aid powder. • Solution-Lemonade, soda pop, kool-aid,

21. What is solubility • Solubility-Solubility is the maximum amount of a solute which will dissolve in a given amount of solvent at a fixed temperature.