1) How many different type of atom are there in a jar of sulfur a) 1 b) 2 c) 3 d) 4 2) What is the symbol for Iron a) I b) Fe c) Mg d) Pb 3) What are all substances made from? a) atoms b) elements c) compounds d) Cheese 4) What substances are made of one type of atom? a) compounds b) mixtures c) elements 5) What do you call a substance made from one or more atoms chemically joined? a) elements b) bonds c) compounds d) knots 6) What are atoms made up of? a) Protons b) Neutrons c) Electrons d) all of the above 7) Which part of an atom is positive? a) proton b) neutron c) electron 8) Which part of an atom is negative? a) proton b) neutron c) electron 9) Which part of an atom is neutral/has no charge? a) proton b) neutron c) electron 10) which part of an atom has almost no mass? a) proton b) neutron c) electron 11) which part of an atom has a mass of 1? a) proton b) neutron c) both of the above 12) What is limestone mainly made from? a) Lime b) stone c) Calcium carbonate d) Calcium oxide 13) What do you get if you mix slaked lime with sand and water? a) slop b) mortar c) cement 14) What is the symbol for calcium? a) Cu b) C c) Br d) Ca 15) What is the formula for iron chloride? a) FeCl2 b) H2O c) Fe 16) What material is made from limestone? a) Glass b) Cement c) Concrete d) All of the above 17) Approximately how many elements are there? a) 300 b) 400 c) 100 d) 200 18) Lithium, Soidium and potassium are all found in group..... a) 4 b) 3 c) 2 d) 1 19) What doe the group number tell us? a) the number of atoms b) the number of electrons in an atom's outer shell c) the number of protons 20) What is breaking down a chemical using heat called? a) decomposition thermal b) thermal decomposition c) thermal underwear 21) If we thermally decompose limestone what do we make? a) Calcium Oxide b) Calcium Hydroxide c) slaked lime 22) What do we get if we react calcium oxide wih water? a) calcium oxide b) calcium hydroxide c) calcium permanganate d) kraft cheese slices 23) What is another name for calcium hydroxide solution? a) lemon water b) lime water c) holy water d) calcium water 24) what happens to lime water if you breathe out into it? a) it goes brown b) it goes black c) it goes pink d) it goes milky 25) If Helium has a proton number of 2 and a mass number of 4, how many neutrons does it have? a) 2 b) 4 c) 6 d) 8 26) What is slaked lime? a) calcium carbonate b) calcium hydroxide c) calcium oxide 27) what is needed to form an ionic bond? a) 2 metals b) 2 non-metals c) a metal and a non-metal 28) What type of substances form covalent bonds? a) 2 metals b) 2 non-metals c) a metal and a non-metal 29) How is an ionic bond formed? a) by the giving or taking of electrons b) by sharing electrons 30) How is a covalent bond formed? a) by sharing a pair of shoes b) by sharing a pair of electrons c) by sharing atoms 31) what is an ion? a) a charged particle b) a charged battery c) a charged horse 32) If something loses an electron, it becomes positive. a) True b) False 33) If an atom gains and an electron it becomes positive. a) True b) False 34) If Magnesium loses 2 electrons, what is the charge on it's ion? a) 1+ b) 2+ c) 3+ d) 4+ 35) Atoms react to become more stable a) True b) False

Chapter 1 Limestone

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