Chemistry, 03.08.2019 11:00 rndbwls5760
Which statement is true? isotopes are atoms of different elements which have the same mass. isotopes of a given element have equal numbers of neutrons. isotopes of a given element have very similar chemical properties. isotopes of a given element have equal numbers of protons and neutrons. isotopes are atoms that have gained or lost electrons.
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Chemistry, 21.06.2019 22:00
Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.
Answers: 1
Chemistry, 22.06.2019 07:30
Calculate the ratio of h+ ions to ohโ ions at a ph = 7. find the concentration of h+ ions to ohโ ions listed in table b of your student guide. then divide the h+ concentration by the ohโ concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to ohโ ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of ohโ ions at a ph = 7? mol/l what is the ratio of h+ ions to ohโ ions at a ph = 7? : 1
Answers: 1
Which statement is true? isotopes are atoms of different elements which have the same mass. isotope...
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