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Chemistry Exam
Chemistry Exam Yr 10
| Question | Answer |
|---|---|
| What are Subatomic Particals | Electrons, Protons and Neutrons |
| How do you work out Nurtons? | Neutrons= mass - atomic |
| How do you work out Protons | Protons= atomic number |
| What is a Neutral Atom | Same number of Electrons and Protons |
| John Daltons Law 1 | All matter is made of Atoms |
| John Daltons Law 2 | Atoms of an element are identical |
| John Daltons Law 3 | Atoms of Diffrent elements combine in constant ratios to form compounds |
| John Daltons Law 4 | Atoms are rearranged in reactions |
| What is Matter | Matter is anything that takes up Mass |
| What is a Atom | The smallest partical of an element that retains the propaties of that element |
| What is an Electron | The negativly charged subtomice partical |
| What is an Proton | A positive charged subtomic partical |
| What is a Neutron | A subtomic Partical with no charge |
| What is a Neucleus | Center of an atom which is composed of atoms and protons |
| Element Diagrams how many dots in each ring | first 2 second 8 |
| Diffrence between reactunts and products? | Starting chemicals are reactunts and the finishing product is the product |
| What are ionic Modules | More than one atom joined togethere.g metal and non metal (steals) |
| What are Covelent Compounds | Two Non metals were they share |
| How to write the name for an Ionic Compound | If the anion in an ionic compound is an element then the name of the compound ends in ide. |
| What does valancy mean? | Is the number of electrons an atom must gain or lose or share to complete its outershell |
| What are cations | Atoms in group 1a2a3a that have to lose electrons and have a positive charge |
| What are Anions | Atoms which gain electrons in group A's in the non metals which have an negative charge. |
| What is an combination | Is when 2 or more reactunts are joined and equals one product A+B=C |
| What is and Decompostion | Is when an reactunt equals 2 products so the reactunt is broken into smaller parts. AB=A+B |
| What is an Single Replacment | Is when a replaces b and ends up with B+ACElement+ Compund = Compound + Element |
| What is a Double Replacment | Is when both partners swap with each otherAB+CD=AD+CB |
| Law of Matter | Matter can not be made or destroyed it is simply transformed |
| Properties of the Periodic Table | Metals, Non Metals, Noble gases, Transition and Halliogions |
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sankeyl
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