1) How many atoms are in NH4C2H3O2? 2) What is a physical change? Give an example. 3) How can you find the number of neutrons in an element? 4) A bond where the valence electrons are shared. 5) The element that takes or receives electrons 6) What subatomic particle has a negative charge. 7) Where are the families on the periodic table? 8) The periodic table is arranged by what? 9) 2Al + O2 → Al2O3 Is this balanced? 10) What is the label for the y axis? 11) Give an example of an ionic bond. 12) A student is doing an experiment and the temperature changed from 10° to 29° what type of reaction is this? 13) The ability to catch fire what type of property is this and what is it called? 14) A bond between 2 non-metals. 15) What type of bond? NH4 16) N2 + 3H2 → 2NH3 Is this equation balanced? 17) What is an exothermic reaction? If an object has a mass of 80 g and a volume of 20cm3 will it sink or float in a substance with a density of 5 g/cm3? 18) Balance the equation SeCl6 + O2 → SeO2 +Cl2 19) Shiny is what type of property? 20) How many Hydrogen atoms are in NH4CH3O2? 21) What phase does the arrow in the picture point to? 22) What does temperature measure? 23) An atom with a charge is called..... 24) What type of bond? KBr 25) What is a compound, give an example. 26) What is the pH range for acids? 27) What group of atoms have a full electron shell so do not like to bond? 28) Where on the periodic table can you find the most reactive metal? 29) Give an example of a physical property. 30) What is the atom called when it has more or less neutrons than normal? 31) How many atoms are in Li2 So4? 32) Where are the non-metals located? 33) A bond where one element gives electrons to another? 34) Dissolving salt in water is a physical or chemical change? 35) A reaction that feels cool to the touch. 36) What is the formula for density? 37) Which phase of matter has the particles moving the slowest? 38) What does the atomic mass on the periodic table tell us? 39) A reaction where energy is released. 40) Which phase of matter has the least amount of energy? 41) What is the energy transformation of a nuclear power plant? 42) What is absolute zero? 43) What is the freezing point of water on the kelvin scale? 44) What is the boiling point on the celsius scale? 45) What is absolute zero on the celsius scale? 46) What is the energy transformation of a hair dryer? 47) What is stored energy called? 48) If a skateboarder is skating down a half pipe where is his potential energy the highest? 49) If a skateboarder is skating down a half pipe where is his Kinetic energy the highest? 50) What is the law of conservation of energy?
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Sol Review 2
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8th Grade
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