An atom has 8 protons. What is its atomic number?, 10, 16, 4, 8, A neutral atom has 13 protons. How many electrons does it have?, 14, 13, 26, 12, An atom has 11 protons and 12 neutrons. What is its mass number?, 23, 11, 1, 12, An atom has mass number 31 and 15 protons. How many neutrons?, 46, 31, 16, 15, Which particle is NOT included when calculating mass number?, Proton, Neutron, Both proton and neutron, Electron, An atom has electron arrangement 2,8,1. How many electrons altogether?, 8, 10, 11, 9, An atom has electron arrangement 2,8,7. How many outer-shell electrons?, 7, 8, 17, 2, Magnesium has electron arrangement 2,8,2. What will it normally do?, Gain 2 electrons, Lose 2 electrons, Gain 1 electron, Lose 8 electrons, What ion does magnesium form?, Mg²⁻, Mg²⁺, Mg⁺, Mg⁻, Oxygen has electron arrangement 2,6. What will it normally do?, Gain 2 electrons, Gain 6 electrons, Lose 6 protons, Lose 2 electrons, Magnesium transfers electrons to oxygen. What type of bonding forms?, Covalent, Neutralisation, Ionic, No bonding, Carbon and oxygen share electrons in CO₂. What type of bonding is this?, Ionic, No bonding, Metallic, Covalent, Ionic bonding usually occurs between:, Two non-metals, Two noble gases, Two metals only, Metal + non-metal, Covalent bonding usually occurs between:, Non-metal + non-metal, Metal + non-metal, Metal + metal only, Ion + metal only, What does H₂O contain?, 1 hydrogen + 2 oxygen, 2 hydrogen + 2 oxygen, 2 hydrogen + 1 oxygen, 1 hydrogen + 1 oxygen, How many oxygen atoms are in CO₂?, 3, 2, 1, 4, How many atoms altogether are in CO₂?, 1, 4, 2, 3, How many atoms altogether are in H₂O?, 3, 1, 4, 2, CH₄ contains:, 1 carbon + 1 hydrogen, 4 carbon + 4 hydrogen, 1 carbon + 4 hydrogen, 4 carbon + 1 hydrogen, How many atoms altogether are in CH₄?, 3, 5, 4, 8, Look at this word equation: magnesium + oxygen → magnesium oxide. Which substances are the reactants?, Magnesium oxide, Magnesium oxide and oxygen, Magnesium and oxygen, Oxygen only, In the same reaction, what is the product? magnesium + oxygen → magnesium oxide, Magnesium and oxygen, Magnesium oxide, Oxygen, Magnesium, Complete the reaction: hydrogen + oxygen → ?, Hydrogen chloride, Sodium chloride, Carbon dioxide, Water, Complete this pattern: metal + acid →, Salt + hydrogen, Oxygen + hydrogen, Salt + water, Metal + water, Which pH is the MOST acidic?, pH 7, pH 10, pH 1, pH 4, Which pH is the MOST alkaline?, pH 7, pH 3, pH 10, pH 14, Acid + alkali → ?, Acid + metal, Salt + water, Salt + hydrogen, Oxygen + hydrogen, Dalia wants to obtain PURE WATER from salt water. Which technique should she use?, Simple distillation, Sieving, Chromatography, Filtration, Experiment A uses large marble pieces. Experiment B uses powdered marble. Everything else is identical. Which reacts faster with acid?, Experiment A, Both must be equally fast, Neither reacts, Experiment B, A reaction starts at 25°C and finishes at 18°C. What does this tell us?, The reaction is exothermic, The reaction is endothermic, The reaction must be neutralisation, No reaction happened

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