The Study of Chemistry – Flashcards
Unlock all answers in this set
Unlock answersquestion
| What is chemistry? |
answer
| Chemistry is the study of matter. |
question
| What four components make up the basis for the study of chemistry? |
answer
| 1. composition 2. structure 3. properties 4. changes that matter undergoes |
question
| Two changes that matter undergoes are... |
answer
| Physical and chemical. |
question
| Organic chemistry |
answer
| The study of carbon-containing compounds. |
question
| Inorganic chemistry |
answer
| The study of compounds that do not contain carbon. |
question
| Biochemistry |
answer
| The study of chemical processes that occur in living things. |
question
| Physical chemistry |
answer
| The study of the interaction between mass and energy. |
question
| Analytical chemistry |
answer
| The study of the composition and structure of compounds. |
question
| Studying photosynthesis would be an example of studying what branch of chemistry? |
answer
| Biochemistry |
question
| A property is.. |
answer
| Characteristic that allows us to distuingish or identify matter. |
question
| A property may be expressed as one of two things: |
answer
| Qualitative or quantitative. |
question
| Description of qualities of matter based on senses. |
answer
| Qualitative. |
question
| Description based on numbers and may include units of measure. |
answer
| Quantitative. |
question
| The ability of a metal to be pounded into a thin sheet. |
answer
| Malleability. |
question
| The ability of a metal to be pulled into a wire. |
answer
| Ductility. |
question
| Temperature at which a substance changes from a liquid to a solid. |
answer
| Melting point. |
question
| Temperature at which a substance boils. |
answer
| Boiling point. |
question
| Amount of a substance that can be dissolved in water. |
answer
| Solubility. |
question
| A physical property would be defined as... |
answer
| A property of matter that can be observed without chemically altering the substance. |
question
| Matter is... |
answer
| Anything that has mass, volume, and inertia. |
question
| Resistance to change in motion. |
answer
| Inertia. |
question
| The four states of matter. |
answer
| 1. solid 2. liquid 3. gas 4. plasma |
question
| Properties of a solid. |
answer
| Definite shape. Definite volume. Molecules are densely packed. |
question
| Properties of a liquid. |
answer
| Indefinite shape. Definite volume. Constant slow motion. |
question
| Properties of a gas. |
answer
| Indefinite shape. Indefinite volume. Rapid random movement. Least dense phase of matter. |
question
| Properties of plasma. |
answer
| Indefinite shape. Indefinite volume. Rapid random movement. |
question
| Intensive Property |
answer
| A property that does not depend on the amount of matter present. |
question
| This property can be used to identify substances. |
answer
| Intensive property. |
question
| Property that changes based on the amount of matter present. |
answer
| Extensive property. |
question
| Most chemical properties are... |
answer
| Intensive. |
question
| A change that does not chemically alter the substances. |
answer
| Physical change. |
question
| A change that alters the chemical identity of a substance. |
answer
| Chemical change. |
question
| If a gas changes into a liquid, it is called... |
answer
| Condensation. |
question
| If a liquid turns into a gas, it is called... |
answer
| Evaporation. |
question
| If a solid turns into a liquid, it is called... |
answer
| Melting point (fusion). |
question
| If a liquid turns into a solid, it is called... |
answer
| Freezing. |
question
| If a solid turns into a gas, it is called... |
answer
| Sublimation. |
question
| If a gas turns into a solid, it is called... |
answer
| Sublimation. |
question
| Rusting is the result of a(n)... |
answer
| Oxidation/reduction reaction. |
question
| Chemical reactions are written in the form... |
answer
| Reactants -------> Products (The arrow represents 'yields'). |
question
| An aqueous solution is.. |
answer
| A solid or gas dissolved in H2O. |
question
| Atoms can be rearranged, but cannot be... |
answer
| Created or destroyed. |
question
| A reaction where energy is released. |
answer
| Exothermic. |
question
| When a solid substance forms from a reaction, it is called a.. |
answer
| Precipitate. |
question
| Combination of two or more pure substances physically. |
answer
| Mixtures |
question
| Cannot be separated by physical means. |
answer
| Pure substance |
question
| Looks same throughout. |
answer
| Homogenous mixture. |
question
| A homogeneous mixture is also called a... |
answer
| 'Solution'. |
question
| Table salt is an example of... |
answer
| Homogenous mixture |
question
| Has variable composition throughout. |
answer
| Heterogeneous mixture |
question
| Milk is an example of a... |
answer
| Heterogeneous mixture |
question
| 2 or more elements combined chemically. |
answer
| Compound |
question
| True or False: A compound cannot be decomposed. |
answer
| True: A compound can be composed if a chemical reaction occurs. |
question
| Ammonia is an example of... |
answer
| A compound |
question
| Cannot be broken down by chemical means. |
answer
| Element |
question
| One element or single atom. |
answer
| Monatomic |
question
| 2 atoms of the same element. |
answer
| Diatomic |
question
| 03 is an example of... |
answer
| A Triatomic, which is ozone. |
question
| 3 atoms of the same element. |
answer
| Triatomic |
question
| 2 or more fames of the same element. |
answer
| Allotrope |
question
| 02 and 03 are an example of.. |
answer
| Different allotropes. |
question
| Chromotography |
answer
| Separation of a mixture based on polarity and the attraction of the substance to the mobile phase vs. stationary phase |
question
| This method of separation is used to separate blood. |
answer
| Centrifuge |
question
| Centrifuge |
answer
| High-speed spinning used to separate mixtures based on density. |
question
| Separation of homogeneous liquid mixtures based on boiling point differences. |
answer
| Distillation |
question
| Distillation is only used on what kind of mixture? |
answer
| Homogeneous |
question
| Used to separate a solid from an aqueous solution. |
answer
| Evaporation |
question
| How does one filtrate a heterogeneous mixture? |
answer
| With a funnel and filter paper. |
question
| Used to separate solids from a heterogeneous mixture. |
answer
| Filtration |
question
| Filtration is only used to separate what kind of mixture? |
answer
| Heterogenous Mixture |
question
| Separate a mixture based on magnetism. |
answer
| Magnetic Properties |
question
| Chemical methods are used to break compounds down into their component ________. |
answer
| Elements |
question
| When used to break down a compound, what usually has to happen for decomposition to occur? |
answer
| Extreme heat |
question
| When used to break down a compound, what usually has to happen for decomposition to occur? |
answer
| Extreme heat |
question
| Hydrolysis is also known as.. |
answer
| Electrolysis |
question
| A breakdown of water using electricity. |
answer
| Hydrolysis/Electrolysis. |
question
| Solutions are made up of (1) dissolved in a (2). |
answer
| 1. Solute 2. Solvent |
question
| Acid turns ___ litmus paper ___. |
answer
| blue red |
question
| Bases produce what in a solution? |
answer
| Hydroxide |
question
| Acids produce what in a solution? |
answer
| Hydrogen ion |
question
| Acids are also... |
answer
| Electrolytes |
question
| What kind of flask is used in distillation? |
answer
| Florence Flask |
