Chemistry, 28.07.2019 13:00 haleyzoey7
Aneutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and electrons are found within the atom? a) 21 protons, 21 electrons, and 20 neutrons b) 20 protons, 20 electrons, and 21 neutrons c) 21 protons, 20 electrons, and 20 neutrons d) 41 protons, 41 electrons, and 20 neutrons
Answers: 1
Chemistry, 22.06.2019 01:30
Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.
Answers: 1
Chemistry, 22.06.2019 04:30
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 10:30
Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88
Answers: 1
Aneutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and e...
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