Chemistry Cumulative Exam Study 100% Correct!!

Matter includes all of the following EXCEPT - ANSWERlight The study of essentially all substances containing carbon is - ANSWERorganic chemistry the melting of candle wax is classified as a physical change because it - ANSWERproduces no new substances Chemic properties - ANSWERinclude changes that alter the identity of a substance the state of matter in which a material has neither a definite shape nor a definite volume - ANSWERgaseous state The reaction of hydrogen with oxygen to form water is an exothermic reaction BECAUSE - ANSWERheat is released during the reaction The symbols for unties of length in order from smallest to largest are - ANSWERmm, cm, m, km results given in descriptive, nonumeric form are said to be - ANSWERqualitative if some measurements agree closely with each other but differ widely from the actual value, these measurements are - ANSWERprecise, but not accurate An example of a heterogeneous mixture would be - ANSWERvegetable soup Chemistry is defined as the study of the composition and structure of materials and - ANSWERthe changes in matter the number 84 in the name krypton-84 represent - ANSWERthe mass number average relative atomic masses are measure in - ANSWERgrams the scientist credited with the discovery of the electron is - ANSWERJ.J. Thomson the scientist credited with the discovery of the neutron is - ANSWERChadwick all atoms of the same element have the same - ANSWERnumber of protons