| A | B |
|---|
| Solution | A mixture in which one or more substance are uniformly dissolved in another substance. |
| Solvent | In a solution the substance in which a solute is dissolved. |
| acid | Any substance that increases the concentration of hydrogen (H=) ions when added to a water solution. |
| redox reaction | Aoxidation reaction in which electrons are transferred between atoms. |
| hydronium ion | The H3O+ ion |
| oxidation reaction | A chemical reaction in which a reactant loses one or more electrons, becoming more positive in charge |
| endergonic reaction | Reaction that involve a net obsorption of free energy. |
| hydroxide ion | The OH- ion |
| enzyme | Are an imortant class of catalysts in living things. |
| dissociation | The separating of a molecule into simpler molecules, atoms, radicals, or ions. |
| saturated solution | A solution in which no more solute can dissolve. |
| buffer | Chemical that neutralizes small amounts of acids or bases added to a solution. |
| exergonic reaction | Chemical reactions that involve a net release of free energy. |
| activation energy | amount of energy required for a chemical reaction to start and to continue on its own. |
| reduction reaction | A chemical reaction in which a reactant gains one or more electrons, becoming more negative in charge. |
| catalyst | A chemical that reduces the amount of activation energy needed for a reaction but is not a reactant. |
| free energy | The energy in a system available for work. |
| pH scale | A numeric range that quantifies the relutive concentrations of hydronium ions and hydroxide ions in a solution. |
| base | any substance that increases the concentration of hydroxide (OH-) ions when added to a water solution. |
| alkaline | It refers to bases |
| experiment | Is based on a comparison of a control group with an experimental group. |
| buffer | Chemical that neutralizes small amounts of acids or bases added to a solution. |
| Sampling | Is the technique of using a sample, that is, a samll part ot represent an entrie population. It has to be large and random. |
| Control group | Is an experiment a group or individual that serves as a standard of comparison with another group or individual to which ti is identical except for one factor. |
| Indepencent Variable | An experimentally manipurated variable. |
| energy | Is the ability to do work or cause change. |
| Dependent Variable | Is the results from the independent variable. |
| solute | A substance dissolved in a solution. |
| experimental group | It has change the Independent variable. |
| Observation | Typically employs one or more of the five senses to preseive bojects or events. |
| Prediction | Is a statement made in advance that states the results taht will be obtained from testing a hypothesis. If the hypothesis is true. |
| aqueous solution | A solution in which water is the solvent |
| concentration | A mcasuremement of the amount of solute dissolved in a fixed amount of solvent. |
| data | Include any and all information that scientists gather in trying to answer their questions. |
| Hypothesis | Is a statement that both explains their observations and data and can be tested. |
| controlled experiment | A test of variables using a comparison of a control group with an experimental group. |
| Inference | Is a conclusion made on the basis of facts or premises rather thaan on direct observations. |
| Model | Is essentially an explanation supported by data. |
| Theory | Is a broad and comprehensive statement of what is thought to be true. |
| State | The rate at which atoms or molecules of a substance move dtermines is state: solid, liquid, or gas. |
| reactant | A compount or atom involved in a chemical reaction. |
| Product | A compound formed by a chemial reaction. |
