What is the function of stomata in plants?
Tubes that carry water and nutrients from the roots...
Chemistry, 11.04.2020 23:27 anthonyalvar6636
What is the function of stomata in plants?
Tubes that carry water and nutrients from the roots to the stems
Reproductive organ in plants
Small holes in plants that allow carbon dioxide in and oxygen and water vapor out
Answers: 2
Chemistry, 22.06.2019 06:00
What type of electromagnetic radiation has a shorter wavelength than blue light
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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.)
Answers: 1
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