Chemistry, 05.08.2020 02:01 KittehMeow6039
Chlorine has an electronegativity value of 3.0. Given the electronegativity of N, O, and P (3.0, 3.5, and 2.1, respectively), which of the following molecules has nonpolar bonds?a. NCl3b. Cl2Oc. PCl3d. All of thesee. None of these
Answers: 1
Chemistry, 21.06.2019 19:00
Which term best describes the form sound takes as it travels away from a drum (a- gas)(b-music) ( c-waves) (d-particles
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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) β h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 Β°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 21:30
How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh β na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l
Answers: 3
Chlorine has an electronegativity value of 3.0. Given the electronegativity of N, O, and P (3.0, 3.5...
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