Chemistry, 12.09.2019 02:30, naajaae5040
Experiment: leo placed two circles of paper in a petri dish (something used for growing bacteria). one circle of paper was soaked in penicillin. the other had nothing on it. he poured a liquid filled with bacteria into the petri dish which covered both papers. both circles of paper were placed in the petri dish about 3 cm apart. at the end of the experiment, there were no bacteria growing in the circle soaked in penicillin. the other circle of paper had bacteria that were growing well. what was the control
Answers: 3
Chemistry, 22.06.2019 09:30, lisbet123085
Based on its chemical properties, identify the position of each chemical family on the periodic table.
Answers: 3
Chemistry, 22.06.2019 17:40, aaliyahthomas37
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
Experiment: leo placed two circles of paper in a petri dish (something used for growing bacteria)....
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