Name Date Block. Go to thesciencequeen.net click on student resources and then chemistry matters to find the links to answer the question.
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1 Name Date Block Chemistry Matters Go to thesciencequeen.net click on student resources and then chemistry matters to find the links to answer the question. SITE #1: Chemical Equations 1. What three things does a balanced equation show you? a. b. c. 2. The which enter into a reaction. 3. The which are formed by the reaction. 4. The amounts of each substance and each produced. 5. What two things must we remember when balancing equations? a. b. 6. Every chemical compound has a which cannot be. 7. A chemical must account for every that is used, which is an application of the Law of of. 8. What does the mean? 9. What does the mean? 10. Write a balanced chemical equation that illustrates each type of reaction. a. Synthesis - b. Decomposition - c. Single-Replacement - d. Double-Replacement (Ionic) - SITE #2: Classic ChemBalancer - You will need to go back to the Matter & Atoms page of the Kid Zone! 1. Click the button for Directions and read carefully. Click the OK button and return to the game screen. 2. Click Start Game button to give it a try! 3. Start by adding a 1 in each box and compare the number of atoms of each element you have on each side. 4. Change coefficients to balance each equation and click the Balanced button to check it. Correct it if it s wrong. 5. Use the information in the pop-up windows to answer each question and then write the balanced equation before clicking the OK button.
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3 Site 3: It s Elemental - Balancing Act Start with five equations and the Beginner level. Balance the equations that are presented and write the balanced equation in the boxes below. Record your attempts after you have finished each level! You may want to use a piece of scratch paper. Then continue with the Intermediate and Advanced levels.
4 Site 4: Chem Time Clock 11. All materials, whether solid, liquid or gas, are made of. Atoms are the smallest of. Scientists have found over different kinds of atoms. The many different materials we encounter are made from of these atoms. A material in which all atoms are the same kind is called an. Therefore, there are over different elements. Each element has been assigned a number, called its. 12. Search for information about each element on the Chem Time Clock. Use the chemical symbol to identify each element. Lightest atom First discovered in the sun Lightest metal Found in borax Atomic number of 7 Major component of air Used in making toothpaste An element in table salt Atomic number of 12 Used in mag wheels Atomic number of 9 Used in laundry detergents Beryl, emeralds, and aquamarine Atomic number of 11 Diamond and graphite 2nd most abundant element on Earth Atomic number of 3 Glows red-orange with electricity Name from Greek word for sun Most common atom in universe Found in buckyballs Atomic number of 2 Site 5: All about the Atom 13. The basic unit of all matter is the. 14. All atoms are made of three types of particles,, and. 15. The is used to identify an atom. 16. Protons are found in the of atoms. They have a charge. 17. How can you calculate the number of protons in an atom? 18. What happens when the number of protons in an atom changes? 19. How big are protons compared to electrons? 20. Where are neutrons found in an atom? 21. How can you calculate the number of neutrons in an atom?
5 22. How are isotopes formed? 23. What is the charge on an electron? 24. How can you calculate the number of electrons in an atom? 25. An atom can gain or lose electrons to become an 26. A sodium atom has protons and electrons and a sodium ion would have protons and electrons. 27. The removal of an electron results in a charge. 28. THINK!! If 2 electrons were removed from magnesium, what would the charge on magnesium be? 29. Electrons occupy different energy levels in the around the nucleus. Site 6: Brief History of the Atom Make sure that all of the dates and all of the inventors are filled in. Hints a) My famous quote was disputed by Aristotle, although time proved me correct. b) In what date was it determined that matter can neither be created nor destroyed. Name the date and the scientist c) Name the date and inventor of the modern version of the Atomic Theory d) I was born in 1831 and showed that electricity and magnetism are scientifically related. e) he developed the plum pudding model and also was the first to discover the. f) In 1909 this scientist demonstrated that the atom is mostly empty space with a small positively charged nucleus containing most of the mass and low mass negatively charged particles orbiting this nucleus. He was also credited with naming and. g) What date did Neils Bohr developed the first successful model of the atom?
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