How can a scientist ensure that his or her data are reliable? by making a single observation by repeating trials during an experiment by recording values without units by keeping the results private

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

An observation that requires measurement is called quantitative observable or qualitative