module 1 Exam Questions & Answers Latest Update Rated A

For exponential numbers if the sign is neagtive that means the number is ? - ANSWER-*smaller* than 1 For exponential numbers if the sign is postive that means the number is ? - ANSWER-*bigger* than 1 To convert *kalvin temp* to *centigrade temp* you must? - ANSWER-*subtract 273* To convert *centigrade* to *kalvin* degree we must ? - ANSWER-*add 273* To convert *F* to *C* you must ? - ANSWER-*subtract 32 and divide by 1.8* To convert *C* to *F* you must? - ANSWER-*multiply by 1.8 and add 32* density = - ANSWER-mass over volume triangle for density - ANSWER-mass at the top then density to the left and volume to right *element* is one of the one hundred or more substances that are listed on the ? - ANSWER-*periodic table* if you see the names of two or more elements present in the name then that is a ? - ANSWER-*compound* example : sodium sulfate= compound If it is not listed on the periodic table and does not have 2 or more elements in its name then it must be a - ANSWER-*mixture* homogeneous mixture = ? - ANSWER-*solution* appear to be all one material example : salt water but it is made up of 2 salt and water when you see 2 materials present that means that mixture is a ? - ANSWER-* heterogeneous mixture* physcial changes ? - ANSWER-*melting, freezing, boiling, evaporation, condensation, dissolving* chemical changes? - ANSWER-* rusting, cooking, baking, burning*