Chemistry, 13.03.2021 05:40 wshemekia3oyliv4
Calculate the value of [Ag+] in 50.0 mL of a saturated solution of AgBr at 298k
Answers: 3
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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If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.
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Chemistry, 22.06.2019 19:20
The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n
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Calculate the value of [Ag+] in 50.0 mL of a saturated solution of AgBr at 298k...
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