When there is either ONLY one negative or ONLY one positive and the other is neutral, why is there still an attraction? a All Matter Has Charges. b The Neutral May Have Partial Charges. c For the Negative, it is Attracted to the Positive Protons. d For the Positive, it is Attracted to the Negative Electrons. e All the Above. f None of the Above.

Noble gases is far right

Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized? the correct answer is: a). as an exothermic process because it releases heat

In order to improve results, many different steps can be taken into account. 1) using more precise scales and thermometers is always something that should be considered as being precise means that you are more exact with your answer.2) increasing the sample size should also be considered, if you have a bigger sample size you are able to determine if your results are accurate as well as if there are any variables that should be taken into account plus it assists in the statistical analysis and produces overall better data3) using better handwriting is also a plus, along with organizing the data properly so that others are also able to read the results and even redo the experiment in the future if it is needed.