Chemistry, 10.09.2019 02:30 granthazenp5e9mj
Achemist needs to create a series of standard cu2 (aq) solutions for an absorbance experiment. for the first standard, he uses a pipet to transfer 25.00 ml of a 2.96 m cu2 (aq) stock solution to a 250.0 ml volumetric flask and adds enough water to dilute to the mark. he then uses a second pipet to transfer 20.00 ml of the second solution to a 100.0 ml volumetric flask and adds enough water to dilute to the mark. calculate the concentration of the cu2 (aq) solution in the 100.0 ml volumetric flask.
Answers: 2
Chemistry, 21.06.2019 20:30
10. translate each of the following chemical equations into a sentence. a. 2 zns(s) + 3 o2(g) -> 2 zno(s) + 2 so2(g) b. cah2(s) + 2 h2o(l) -> ca(oh)2 (aq) + 2 h2(g)
Answers: 2
Chemistry, 22.06.2019 07:30
The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 3
Chemistry, 22.06.2019 16:30
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
Answers: 1
Chemistry, 22.06.2019 18:00
Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule
Answers: 2
Achemist needs to create a series of standard cu2 (aq) solutions for an absorbance experiment. for t...
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