Chemistry, 03.07.2019 04:30 GEEKLIFE6598
What are limitations of models? (choose all that apply.) models are 100% accurate. no model can possibly explain every detail of a scientific phenomena. * models are always to scale. models do not show every detail. * (the ones i put * on, those are the ones i think to be correct.)
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Chemistry, 22.06.2019 03:30
In saturated organic compounds, all the bonds between carbon atoms are called?
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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.)
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Chemistry, 22.06.2019 12:00
What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist
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What are limitations of models? (choose all that apply.) models are 100% accurate. no model can pos...
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