Can anyone elp me with chemistry ? ? i will be asking multiple questions but even if you can only answer one-- i will still deeply appreciate ! (these are the one's im unsure
3. identify the reducing agent in the following equation: 2 al(s) + 3 h2so4 (aq) arrow al2(so4)3 (aq) + 3 h2 (g).
a. al (s) *
b. h2so4 (aq)
c. al2(so4)3 (aq)
d. h2 (g)
9. how many milliliters are 0.200 m hcl are required to react completely with 25.0 milliliters of 0.100 m methylamine, ch3nh2?
a. 5.00 ml
b. 6.25 ml
c. 12.5 ml *
d. 25.0 ml
16. a solution has a [oh−] of 1 x 10−9. what is the poh of this solution?
a. 5
b. 7
c. 9 *
d. 12
17. if a small amount of excess acid is added to a buffered solution, the ph of the solution should:
a. change sharply and then neutralize *
b. remain very close to the original ph value
c. fluctuate rapidly between high and low values and then achieve a neutral balance
d. neutralize instantaneously
18.compared to other main group hydrides, such as ch4, nh3, h2s and hf, water is unique because it is a liquid at room temperature. the most likely explanation for this is that:
a. water is more plentiful than any of these other compounds.
b. water contains oxygen and since oxygen has a high boiling point, so should water.
c. water's structure allows for the formation of multiple hydrogen bonds with other molecules, including itself. *
d. water is able to dissolve nonpolar gases like oxygen and carbon dioxide.
28. predict whether the following double-replacement reaction will produce a precipitate: mgcl2 + li2co3 arrow mgco3 + 2 licl.
a. no; all products are soluble
b. yes; the mgco3 will precipitate *
c. yes; the licl will precipitate
d. yes; both the mgco3 and the licl will precipitate
btw i added a * to the answers i think are correct.
Answers: 1
Chemistry, 22.06.2019 05:40
Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
Answers: 1
Chemistry, 22.06.2019 13:30
What are the chemical names of these compounds? ke: mg3n2: reset next
Answers: 1
Chemistry, 22.06.2019 15:30
Light waves can move through , but they travel fastest when they move through a(n) .
Answers: 1
Chemistry, 22.06.2019 22:00
Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
Answers: 1
Can anyone elp me with chemistry ? ? i will be asking multiple questions but even if you can only a...
Mathematics, 08.10.2019 23:30
English, 08.10.2019 23:30
Spanish, 08.10.2019 23:30
Chemistry, 08.10.2019 23:30
History, 08.10.2019 23:30
English, 08.10.2019 23:30
Biology, 08.10.2019 23:30
English, 08.10.2019 23:30
Biology, 08.10.2019 23:30
Mathematics, 08.10.2019 23:30
Mathematics, 08.10.2019 23:30