Week_5_Lab-_fill

The physical and chemical properties of a molecule depend on its structure. Here are two ball-and-stick models for two compounds that have the same molecular formula but different structures and different chemical properties. Ethanol Dimethyl ether

Lewis Structure Worksheet #1 Read the Instructions for Drawing Lewis Structures worksheet carefully and draw Lewis structures for each of the following molecules: Group A: Simple Molecules CH4 NC13 NH3 H20 SIF4

Look at the structure of a soap molecule, and explain what happened when you added soap to your oily hands and put your hands under the water for the solubility lab. Why could you wash the oil off your hands with soap and water? You should use chemistry concepts including structure, polarity, and intermolecular forces to explain your answer. attached is the lewis structure of a basic soap molecule. There are covalent bonds between all carbons, hydrogens, and oxygens. However, there is an ionic bond between oxygen and sodium ions.

Consider the following chart with ionic and covalent compounds shown. Ionic and Covalent Compounds     Compound Melting Point ⁰C Boiling Point ⁰C W 801 1465 X 2852 3,600 Y 0 100 Z 113 184 Based on the data, which compounds would you classify as ionic or covalent and why? A Compound Y is ionic because its’ melting and boiling points are low.   B Compound Y and Z are covalent because their melting and boiling points are low.   C Compounds W, X, and Z are ionic because their melting and boiling points are high.   D Compounds W, X, and Z are covalent because their melting and boiling points are high.

THIS is the equation N2H4 + O2 → N2 + H2O PLEASE HELP AND LOOK AT THE PICTURE FOR DATA  PLEASE HELP! I REALLY NEED HELP BECAUSE MY TEACHER HASENT TAUGHT ME HOW TO DO THIS PLEASE HELP!!!!!   Balance the equation (if not already balanced) Draw the models of the molecules in the equation, using Lewis structures, ball and stick models or something else that represents each of the atoms and how they are connected.  Identify bonds being formed or broken.  Use bond energy values from below to Calculate the overall energy of the reaction. Determine if the reaction is exothermic or endothermic. Draw a potential energy diagram showing the ∆H, reactants and products. Create one example of mass (g) to mass (g) stoichiometry problem.

What is a double bond? What is a triple bond? Compare the bond lengths for single, double and triple bonds between two carbon atoms.

Draw and upload a Lewis structure for CH4. as well as answer the following questions. -what is the hybrizatjon around the carbon? - what is the electron pair geometry for your drawing? -what is the bond angle between the C-H bonds of CH4 what is the molecular shape for CH4?

Draw the Lewis structures of the neutral atom and the ion of Carbon. Determine the number of electrons gained or lost in forming an ion.

Part A) Consider the structural changes that occur in the following molecules. Begin by drawing the best Lewis Structure for each of the following molecules. BH3 CH4 NH3 H2O HF Part B)What are the ideal bond angles for each structure, and which are expected to be distorted? For the ones that are distorted look up on the internet and record their experimental values here:    Part C)According to Lewis and VSEPR theory, why do these changes occur?

Draw the Lewis structure of these compounds and use the electronegativity values, calculate the polarity of the molecules and write if the compounds will be polar, nonpolar, or ionic. Label the + and -next to the atoms of the molecule if they have charge. Also, write the overall dipole. HCN CH₂CHCl CH₃CH₃ CO₂

Science in Everyday Living 8 Let Us Apply Element, C for Compound, and M for Mixture. 1. Sea Water 6. Bronze 2. Titanium 7. Krypton 8. Sulfuric acid 3. Rubidium 4. Gasoline 5. Baking Soda 9. Popcorn 10. Concrete B. Categorize the following compounds. Write O for organic compounds and | for inorganic compounds. 1. Peanut Oil 6. Carbon Dioxide 2. Salt 7. Butane 3. Ozone 8. Alcohol 4. Acetone 9. Hydrogen Fluoride 5. Water 10. Table Sugar C. Identify the following mixtures. Write SOL for Solution, SUS for suspension, and COL for colloids. 1. Salt and oil 6. Muriatic Acid 2. Fog 7. Wine 3. Marshmallow 8. Vinegar 4. Carbonated Water 9. Muddy Water 5. Cooked Starch 10. Smoke Us Enrich If you want to discover more information about mixtures, you can watch the following videos about Solutions, Suspensions, Colloids and the Tyndall Effect on Youtube: 1. "Solution, Suspension, and Colloid" by It's Aumsum Time at www.youtube. com/watch?v=XEAİLm2zuvc 2. "Tyndall Effect – Why does the sky appear…

Answer the questions in the table below about the shape of the methanone (H₂CO) molecule. How many electron groups are around the central carbon atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central carbon atom? (You may need to use the scrollbar to see all the choices.) (choose one) X S

The molecular structure of ibuprofen, a widely used pain reliever. Ibuprofen has a limited solubility to water, less than 1mg/mL. Identify which part of the molecule contributes to its water solubility and water insolubility.

what is the difference between Ionic and covalent bonds?

Use this condensed chemical structure to complete the table below. CH, — С — О — С — CH, The condensed chemical structure of acetic anhydride Some facts about the acetic anhydride molecule: number of carbon-carbon single (C - C) bonds: number of carbon-hydrogen single (C - H) bonds: number of lone pairs:

Draw the Lewis structure of these compounds and use the electronegativity values, calculate the polarity of the molecules and write if the compounds will be polar, nonpolar, or ionic. Label the + and -next to the atoms of the molecule if they have charge. Also, write the overall dipole. CH₄ O₂ CH₂Cl₂ H₂O CH₃Li

Water has many exceptional and useful properties. Which is the rarest property among compounds? Water has a high heat capacity. Solid water is less dense than liquid water. Water is a solvent. Water has surface tension.

Covalent bonding involves the sharing of electrons between atoms. The number of covalent bonds an atom can form relates to the number of electrons it can share and still result in a neutral molecule. It is important to know how many bonds certain elements are most likely to form in order to draw structural formulas for molecules.

chemical reaction 1. The equation shows a --the breaking and forming of chemical bonds that leads to a reactant product nonpolar covalent bond polar covalent bond equal to different from hydrogen bond change in the composition of matter. 2. In the equation, CO2 is a 3. In the equation, C6H12O6 is a 4. In O2, the type of bond that holds the two oxygen atoms together is a 5. In H2O, the type of bond that holds one of the hydrogen atoms to the oxygen atom is a 6. The number of oxygen atoms on the left side of the equation is atoms on the right side. the number of oxygen