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Chemistry Prior Knowledge Check Name: 1. In the space below draw the Bohr diagram of the atomic structure (ie protons, neutrons and electrons). Label charge and relative mass of each sub-atomic particle. Help video: https://youtu.be/mBpnABBApu8 2. Complete the table below: youtu.be/XUfSiVhYoBk youtu.be/i3AAd2R4aHY Property Are the electrons transferred or shared? Which types of elements are involved – metals/non-metals? Give 3 examples of these types of compounds – names Give the balanced chemical formulas for these 3 compounds Give the names or numbers of groups from the periodic table that are likely to bond together Ionic Bonding Covalent Bonding Metallic bonding 3. Balance the following equations. https://youtu.be/VlPHpUE_14s youtu.be/AoK2BWqQDmQ a. Mg + O2 ⇨ MgO b. Mg + HCl ⇨ MgCl2 + c. KNO3 ⇨ KNO2 + O2 d. C2H6 + O2 ⇨ CO2 + e. Mg(OH)2 f. P4 g. h. + ⇨ HCl MgCl2 O2 ⇨ P2O5 KClO3 ⇨ KCl + O2 BaO HNO3 ⇨ + + Ba(NO3)2 + H2 H2O H2O + H2O 4. Jessica heated some bright blue copper(II) nitrate crystals in a test-tube. She noticed brown nitrogen dioxide gas being produced. When a glowing splint was held at the top of the test-tube, it relit, proving that oxygen gas was also produced. A fine black solid, copper(II) oxide, was left in the test-tube. a. Assess which substances are reactants and which are products. b. Deduce the chemical equation for this reaction. c. Deduce the balanced chemical equation, including states. 5. Look at the information about Argon given. youtu.be/pK2qTs8tKV4 a. b. c. d. e. f. g. h. How many protons? How many neutrons? How many electrons? How many electron shells? What is the atomic number? Which group is it in? What period is it in? When bonding, would it prefer to lose or gain electrons? If so, how many? 6. Look at the image of a model of an element below and answer the questions. a. How many electron shells does it have? b. What is its atomic number? c. What is its (rounded) mass number? d. Which element is it? e. Which period on the periodic table is it found in? 7. Answer true or false https://youtu.be/-0N1ZZZRM48 a. Carbon is a non-metal b. Helium has 2 protons and 2 neutrons c. Hydrogen has 1 proton and 1 neutron d. Fluorine is a good conductor of heat e. Chlorine is a noble gas f. Magnesium is a transition metal g. Potassium reacts explosively in water h. Beryllium reacts explosively in water i. The atomic number of an element is the same as the number of protons plus neutrons i. Water is an example of a covalent compound 8. Draw the Bohr model for the following ions youtu.be/bd96pf0EYT8 https://youtu.be/iybOMvgVPM8?t=47 O 2- Al 3+ 9. Fill in the blank boxes of the table below with the number of protons, neutrons, electrons, mass, or charges for the following ions Symbol mass Al 3+ 27 Pb 2+ Zn 2+ N 3- # of electron ion charge 65 9 1 Cl Br - # of neutron 125 O 2H+ # of proton 18 80 8 10. Show the ionization of the following ionic compounds. Make sure to write the ion charges in your products. https://youtu.be/U7wPrhMW9r8?t=25 a. HBr b. KMnO4 c. H2SO4 d. BaCl2 e. FeSO4 f. Ca(OH)2 g. NaOH h. K3PO4 11. Name the following commonly seen compounds a. O2 b. H2SO4 c. H2O d. HCl e. C6H12O6 12. Combine each pair of ions to get the formula of the compound they form and give the name of the compound formed https://youtu.be/C6cTM8jRY7o?t=114 youtu.be/5PD08ihFVIg 13. Name the following compounds 14. Write the chemical formula for the following compounds. Iodine triflouride Nitric Oxide Potassium Nitride dibromine heptaoxide Sodium Nitrate nickel (II) bromide nitrogen trichloride dinitrogen pentasulfide lithium cyanide nickel (II) permanganate 15. Write down your understanding of the following words: Chemistry Term Mass number Atomic number Isotope Compound Boiling point Melting point solution Your understanding Endothermic Exothermic Concentration