Chemistry, 30.04.2021 14:00 Svetakotok
if a radioisotope were to decay to produce chromium-50 and a beta particle. what would the original parent isotope be? pls explain!
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 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 12:00
What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom
Answers: 1
Chemistry, 22.06.2019 18:00
How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate
Answers: 3
if a radioisotope were to decay to produce chromium-50 and a beta particle. what would the original...
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