A chemist divides a large sample of a mixture into three smaller portions. Each of these portions contains different ratios of the component substances that make up the mixture. Which description best fits the mixture? A. Compound B. Element C. Heterogeneous mixture D. Homogeneous mixture E. Pure substance.
Answers: 2
Chemistry, 22.06.2019 09:50, Amandachavez94
Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange
Answers: 1
Chemistry, 22.06.2019 22:30, kiera2599
3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. 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. make a general statement about the reactivity of the metals in this experiment.
Answers: 1
Chemistry, 23.06.2019 19:30, averiemiranda1
⁉️how many kj of energy would be needed to convert 150. g of ammonia to vapor at its boiling point? ⁉️(ammonia’s heat of vaporization is 1.38 kj/g
Answers: 3
A chemist divides a large sample of a mixture into three smaller portions. Each of these portions co...
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