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Chem
| Question | Answer |
|---|---|
| The top of a lettered element | The atomic mass |
| Bottom of lettered element | Atomic protons |
| Moles | Mass/Moler mass |
| Mass of sub | Moles |
| Anything that has mass occupies space | Or volume (Matter) |
| Phase change | Involve loss or gain of energy |
| Endothermic | Absorbes heat |
| Exothermic | Loss of energy |
| Matter cannot be | Created or destroyed only a change can form |
| Energy | Ability to work or be active |
| Kinetic energy | Energy and motion |
| Nolenhal energy | Energy of position |
| Energy = mass/speed of | E=Mc |
| Albert Einsteins theory | Related both energy and matter |
| The sim of all nuclear and energy in the universe is | Constant |
| Chemistry | Study of matter |
| Mixture | Two or more substances that are only physically combined |
| Mixture characters | Retain identity within mixture (you can see it) has a variable composition (you can add as much as you want) because they’re physically combined, easily separated as only physically combined |
| Two types of mixtures | Homogeneous mixture , heterogeneous mixture |
| Homogeneous mixture | Means the same, mixture that is uniformed throughout (all the same) consistant of a single phase, transparent/clear, known as a solution |
| Heterogeneous mixture | Non uniform mixture consisting of two or more mixtures, known as a suspension, most commonly in nature |
| Two parts of a solution | Solute- substance that is dissolved into a substance, solvent-substance that dissolves the solute, the most abundant substance in solutions is solvent |
| Interface | The point where two substances meet or a physical boundary separating the two phases in a hetero mixture |
| Aqueous solution | A solution where water is solvent, when waters involved it will always be a solvent, as it can dissolve anything |
| Mixtures vs substances | Mixtures combined physically substance chemically |
| Element vs compound | Element has one adom a compound is pure substance with two or more elements chemically combined, bot are forms of matter |
| Major mixture characters | No fixed composition Physically combined Retain property of self |
| Atom vs molecule | Atom-Smallest event that still retains form, molecules contain atoms bonded together, atoms can't be divided but molecules can. Both have a definite composition |
| Metals vs non metals | Metal is malleable non metals aren't, metal is ductile, metals are good head conductors both have atoms |
| Metaloid | Both characters from non metals and metal |
| Chatogrize elemts | Black solid white man made blue liquid and red gas |
| What is chemical formula | Formula with 2 or more elements |
| Subscripts | Atoms |
| Coefficient | Molecules |
| Solute and solvent | Solute is dissolved in solvent |
| Mixture | Physically combined keeps identity variable composition |
| Substance | Chemically combined definite comp written out formula |
| Solution | Clear homogeneous mixture has solut and solvent |
| Suspension | Heterogeneous mixture has two clear. Phases |
| Element | Made up of 1 atom |
| Compound | Pure substance with two or more elements from matter |
| Metal | A malleable material metal is ductile and a good heat conductor |
| Organic compound | has carbonhydrates carbon and hydrogen sometimes oxygen |
| Inorganic | No carbon not living and no hydrogen |
| Mega M | Million x |
| Extensive physical | Dépendant on amount, property changes as matter changes , length |
| Intensive physical | Amount independent, property remains the same no matter how much matter added, color, taste, boiling point , density |
| Addition range | Round by sure uncertainty largest +/- to the left (+/- 100.) |
| Mult and div | Round by keeping highest sig fig |
Created by:
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