Particle found in an atoms nucleus are...., electrons + protons, electrons + neutrons, protons and neutrons, Electrons are..., negative, positive, neutral, An atoms atomic number tells you the number of...., protons, neutrons, protons and neutrons, electrons, Methane gas (CH4) is an...., element, compound, mixture, The electron coniguration for carbon is...., 2,6, 2,4, 6,2, 4,2, An atoms mass number tell us the number of .............., electrons, protons and electrons, protons and neutrons, electrons and neutrons, Covalent compounds are formed between non metal atoms when they....., gain or loose electrons, form ions, share electrons, What type of structure is this...., Giant covalent, Simple covalent, giant ionic, metallic, Giant covalent strucutes have....., low melting points, high melting points, What type of bonding does water have?, giant covalent, simple covalent, ionic, metallic, What is a property of simple covalent compounds., High melting point, Low melting point, An ionic bond is ..., when atoms share electrons., the attraction between oppositely charged ions., a week force., Ionic compounds can conduct electricity when..., solid, molten or in solution, hot, An example of an ionic compound is ..., water, diamond, iron, sodium chloride, How many neutrons does sodium have?, 10, 11, 12, 13, 14, What is the relative atomic mass of CO2, 40, 41, 42, 43, 44, 45, An exothermic reaction...., takes in heat, gives out heat, The Haber process is an example of a...., neutralisation reaction., reversible reaction., reduction reaction, Ammonia is used as...., a food additive, fertiliser, a polymer, The chemicals used to make ammonia are....., Hydrogen and oxygen, Hydrogen and Nitrogen, Nitrogen and oxygen, Hydrogen and Nickel, Increasing a temperature increases the rate of a reaction because...., there are more particles, there are less particles, particles collide more often, particles collide less often, A catalyst increases the rate of a reaction by...., increasing the number of collisions, increasing the activation energy, decreasing the activation energy, Which one will increase the rate of a reaction...., high surface area, low temperature, low concentration, low pressure, The pH of hydrochloric acid is...., 1, 4, 7, 8, 14, The pH of sodium hydroxide is....., 1, 4, 7, 8, 10, 14, In solution acids form..., OH- ions, H+ ions, When acids and alkalis react what is always formed?, Hydrogen and water, Salt and hydrogen, Salt and water, Salt and Carbon Dioxide, Hydrochloric acid and sodium hydroxide will form the salt...., Potassium chloride, Sodium nitrate, Sodium Chloride, Potassium Sulphate, Nanoparticles are....., very large., invisible., very small., found in atoms., Sulphuric acid and sodium hydroxide make the salt, Potassium Nitrate, Sodium Chloride, Sodium Nitrate, Sodium sulphate.
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autors: Anonīms
Secondary
Chemistry
Atoms, Elements and the Periodic Table
Atomic structure
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