Chemistry of foods

Unit 4 Lab Part A Electrons and Chemical Reactions STEM Case Gizmos 57 pts Please use your user name and password to login to . Then look for the Electrons and Chemical Reactions case in the list. Please put your answers in a different color than the rest of the text or lab will be returned without a grade until you do. Q1. What is your role? - Forensic scientist Q2. What evidence is found? - Copper coins, coins that look silver, and coins that look gold Handbook Q3. Make some ions. A. What is a...

Student Exploration: Phase Changes Vocabulary: altitude, boil, boiling point, freeze, freezing point, gas, liquid, melt, melting point, phase, solid Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1.A family from Minnesota turns off the heat and flies to Florida for a winter holiday. When they come home, all of their water pipes have burst. What do you think happened? The water pipes had frozen up and there was a lot of pressure in the pipes. Which caused the pipes to burst and make...

it will help and guide the student in various topics and give the student the required knowledge

Student Exploration: Solubility and Temperature Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute, solution, solvent Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What happens when you stir a spoonful of sugar into hot water? The sugar will dissolve. _________________________________________________________________________ 2. When sugar or another substance is dissolved in water, it disappears from view and forms a homogeneous mixtur...

Student Exploration: Chemical Changes Vocabulary: acid, base, catalyst, chemical change, coefficient, conservation of matter, decomposition, dissolve, double replacement, endothermic, exothermic, indicator, ion, physicalchange, product, reactant, single replacement, subscript, synthesis Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A student mixes baking soda and vinegar in a glass. The resultsare shown at left. Do you think any new substances are being created in ...

Student Exploration: Moles Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: atomic mass, Avogadro constant, co nversion factor, dimensional analysis, mole, molar mass, molecular mass, scientific notation, significant figures, unified atomic mass unit Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. In the image to the right, note a dozen eggs, a dozen donuts and a dozen roses. How many of each i...

Student Exploration: Reaction Energy Vocabulary: calorimeter, chemical bond, endothermic, enthalpy, exothermic, Hess’s law Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Two magn ets are stuck together. What might you have to do to get them to separate? Pull them apart 2. Suppose you held two magnets a short distance apart, then let go. What would happen? They would connect 3. Think about the magnets in terms of energy. In which case do you increase the potential energy of the...

Student Exploration: Moles Vocabulary: atomic mass, Avogadro constant, conversion factor, dimensional analysis, mole, molar mass, molecular mass, scientific notation, significant figures, unified at omic mass unit Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. In the image to the right, note a dozen eggs, a dozen donuts and a dozen roses. How many of each item do you have? 2. Would a dozen of each object have the same mass? 3. Suppose you have a dozen carbon atoms, a dozen gold ...

Student Exploration: Moles Vocabulary: atomic mass, Avogadro constant, conversion factor, dimensional analysis, mole, molar mass, molecular mass, scientific notation, significant figures, unified at omic mass unit Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. In the image to the right, note a dozen eggs, a dozen donuts and a dozen roses. How many of each item do you have? 2. Would a dozen of each object have the same mass? 3. Suppose you have a dozen carbon atoms, a dozen gold ...

Solubility and Temperature Answer Key Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute, solution, solvent Prior Knowledge Questions (Do these BEFORE us ing the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] 1. What happens when you stir a spoonful of sugar into hot water? The sugar dissolves into the water. 2. When...