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Recent questions in Chemistry
Which of the following substances exists as a molecular compound? a) Oxygen (O2) b) Calcium chloride (CaCl2) c) Methanol (CH3OH) d) Sulfate ion (SO42–)
Yury Bragin
asked
Dec 14, 2024
by
Yury Bragin
8.0k
points
Chemistry
high-school
1
answer
1
vote
123k
views
What is the energy released in the β− decay of a neutron? a) Depends on the isotope b) 1 MeV c) 0.511 MeV d) 2.2 MeV
Eduard Thamm
asked
Dec 14, 2024
by
Eduard Thamm
7.6k
points
Chemistry
high-school
1
answer
1
vote
51.0k
views
If the parent functional group is on carbon 1, we just leave the number off. False True
Hacer
asked
Dec 14, 2024
by
Hacer
7.3k
points
Chemistry
high-school
2
answers
4
votes
72.8k
views
What is the polarity of slime molecules
Lukas Bach
asked
Dec 14, 2024
by
Lukas Bach
9.1k
points
Chemistry
high-school
2
answers
0
votes
166k
views
Which of the following AA is classified as non-essential? A. Valine B. Lysine C. Glycine D. Threonine
Scott Thomson
asked
Dec 14, 2024
by
Scott Thomson
9.2k
points
Chemistry
high-school
1
answer
1
vote
170k
views
Which of the following options best represents the apparatus set up by Sophie to determine the time required to vaporize 200 mL of a specific liquid? A) A beaker filled with 200 mL of the liquid placed
GnomeDePlume
asked
Dec 14, 2024
by
GnomeDePlume
8.4k
points
Chemistry
high-school
1
answer
5
votes
224k
views
15. Calculate the [OH-] and the [H+] of a substance that has a pOH of 9.45. 16. Using Kw = 1.0 x 10-14, calculate the [OH-] if the [H+ ] is 8.7 x 10-4. 17. Using Kw = 1.0 x 10-14, calculate the [H+] if
Jayant Bhawal
asked
Dec 14, 2024
by
Jayant Bhawal
8.0k
points
Chemistry
high-school
1
answer
0
votes
204k
views
How many grams of oxygen are required for C = ? a) Insufficient information to determine b) C₆H₁₂O₆ c) CO₂ d) O₂
Jksdua
asked
Dec 14, 2024
by
Jksdua
8.5k
points
Chemistry
high-school
1
answer
1
vote
184k
views
A 25.0 mL sample of 0.200 M is titrated with 0.150 M NaOH . What is the pH after the addition of 40.00 mL of the NaOH solution?
Rafaelcpalmeida
asked
Dec 14, 2024
by
Rafaelcpalmeida
8.1k
points
Chemistry
high-school
1
answer
4
votes
99.6k
views
Aromatic carbon compounds such as benzene are planar and very stable. Double-bond character extends around the entire ring, which is why it is often drawn as a hexagon with a circle inside. This characteristic
Guhur
asked
Dec 14, 2024
by
Guhur
8.5k
points
Chemistry
high-school
1
answer
3
votes
194k
views
Using the table of electronegativities provided arrange the following bonds in order of increasing ionic character. (Place the least polar bond at the top of the list.) C-H F-Cl N-O Pd-H
Tillito
asked
Dec 14, 2024
by
Tillito
7.7k
points
Chemistry
high-school
1
answer
3
votes
135k
views
What is the mass number of a neon (ne) atom that contains 11 neutrons?
JJunior
asked
Dec 14, 2024
by
JJunior
7.5k
points
Chemistry
high-school
1
answer
4
votes
118k
views
Which equation represents a redox reduction
Joseandro Luiz
asked
Dec 14, 2024
by
Joseandro Luiz
8.3k
points
Chemistry
college
1
answer
3
votes
34.6k
views
True/False: New phosphodiester linkages always form at the 5' end of the existing polymer.
Ashok Londhe
asked
Dec 14, 2024
by
Ashok Londhe
8.2k
points
Chemistry
high-school
1
answer
1
vote
139k
views
in a single displacement reaction, an element in the activity series most likely can replace any element
Niecey
asked
Dec 14, 2024
by
Niecey
8.5k
points
Chemistry
high-school
1
answer
0
votes
79.4k
views
Mass of acetic acid ____________ a) (#1 - #2) b) (#2 - #1) c) (#3 - #2) d) (#2 - #3)
Zeenobit
asked
Dec 14, 2024
by
Zeenobit
8.3k
points
Chemistry
high-school
1
answer
4
votes
79.5k
views
Weather forecast are not aways to do what Help This is homework for tomorrow
Nancee
asked
Dec 14, 2024
by
Nancee
8.7k
points
Chemistry
college
1
answer
5
votes
14.8k
views
given the system at equilibrium:h2(g) f2(g) 2 hf(g) heatwhich change will not shift the point of equilibrium?
Omal Perera
asked
Dec 14, 2024
by
Omal Perera
7.6k
points
Chemistry
high-school
1
answer
4
votes
215k
views
Which of the following groups of elements is arranged correctly in order of increasing electronegativity? a) MgPNF b) NMgPF c) OFPMgN d) Mg
Jorge Guberte
asked
Dec 14, 2024
by
Jorge Guberte
7.9k
points
Chemistry
high-school
1
answer
5
votes
207k
views
What is a petroleum by-product that has excellent sealing properties to hold moisture in the skin? a) Talcum powder b) Lanolin c) Astringent d) Petroleum jelly
Maarten Buis
asked
Dec 14, 2024
by
Maarten Buis
7.5k
points
Chemistry
high-school
1
answer
5
votes
213k
views
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