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Recent questions in Chemistry
What is universal gas constant? A. atm B. m³ C. mol k
Yousuf
asked
Oct 3, 2024
by
Yousuf
7.9k
points
Chemistry
high-school
1
answer
2
votes
88.7k
views
Is building glucose from carbon dioxide an endergonic or exergonic reaction?
Kishorekumaru
asked
Oct 3, 2024
by
Kishorekumaru
6.9k
points
Chemistry
high-school
1
answer
2
votes
117k
views
Which solute(s) is/are reabsorbed by the proximal convoluted tubule? 1) sodium chloride 2) potassium 3) amino acids 4) glucose 5) All of the above
Soufiane Odf
asked
Oct 3, 2024
by
Soufiane Odf
7.8k
points
Chemistry
high-school
1
answer
4
votes
234k
views
I've read this excerpt from Wikipedia countless times, but I'm still confused: The Avogadro number is the approximate number of nucleons (protons or neutrons) in one gram of ordinary matter. Shouldn't
Bademeister
asked
Oct 3, 2024
by
Bademeister
9.0k
points
Chemistry
high-school
1
answer
0
votes
125k
views
What is a physical change and chemical change..? Thanks
FixMaker
asked
Oct 3, 2024
by
FixMaker
7.5k
points
Chemistry
high-school
1
answer
5
votes
154k
views
Write the chemical reactions for the formation of the respective Grignard reagents from the reaction of magnesium with the following organic halides: iodomethane, bromobenzene, chlorocyclohexane
SATISH RAJNALE
asked
Oct 3, 2024
by
SATISH RAJNALE
8.0k
points
Chemistry
college
1
answer
0
votes
226k
views
Catalyzes the transfer of hydrogen atoms from one cofactor to the other.
MrCartoonology
asked
Oct 3, 2024
by
MrCartoonology
8.7k
points
Chemistry
high-school
1
answer
0
votes
163k
views
Calculate the wavelength of an electron traveling at 1.85 x 10⁷ m/s.
Choman
asked
Oct 3, 2024
by
Choman
7.8k
points
Chemistry
high-school
1
answer
2
votes
51.2k
views
How many kilojoules of heat are absorbed when 70 grams of water is completely vaporized at its boiling point
Mike Hildner
asked
Oct 3, 2024
by
Mike Hildner
8.0k
points
Chemistry
college
1
answer
0
votes
28.6k
views
The following compound contains four tetrahedrally arranged atoms. ╲╱╲╱ a. True b. False
James Tan
asked
Oct 3, 2024
by
James Tan
8.1k
points
Chemistry
high-school
1
answer
0
votes
74.6k
views
Which of the following compounds will undergo bromination most rapidly using Br2, FeBr3? A) p-methylacetanilide B) bromobenzene C) acetanilide D) benzenesulfonic acid E) dibromobenzene
OpenSauce
asked
Oct 3, 2024
by
OpenSauce
7.7k
points
Chemistry
high-school
1
answer
2
votes
90.8k
views
Compare the pH of the urine from the student who drank soda with the student who drank tomato juice. After 40 minutes, the urine from the student who drank soda had: A. a higher pH. B. the same pH. C.
Ben Poulson
asked
Oct 3, 2024
by
Ben Poulson
7.7k
points
Chemistry
high-school
1
answer
5
votes
130k
views
Complete the balanced dissociation equation for the compound below in aqueous solution. If the compound does not dissociate write NR.
Lacey
asked
Oct 3, 2024
by
Lacey
8.9k
points
Chemistry
college
1
answer
3
votes
181k
views
Which one is the most covalent and which one is the most ionic among these and why? 1)F2 2)HF 3)LiF
NikofTime
asked
Oct 3, 2024
by
NikofTime
8.1k
points
Chemistry
high-school
1
answer
4
votes
178k
views
Arrange these ions according to ionic radius: Ca²⁺, Cl⁻, K⁺, S²⁻, P³⁻? A) Cl⁻, P³⁻, S²⁻, K⁺, Ca²⁺ B) K⁺, Ca²⁺, Cl⁻, S²⁻, P³⁻ C) P³⁻, S²⁻, Cl⁻, K⁺, Ca²⁺ D) Ca²⁺, K⁺, Cl⁻, S²⁻, P³⁻
Fredrick Gauss
asked
Oct 3, 2024
by
Fredrick Gauss
8.1k
points
Chemistry
high-school
1
answer
5
votes
174k
views
Calculate the enthalpy change for the reaction: 2H_2(g)+N _2 (g)→2HCN(g) a. Exothermic b. Endothermic c. No change d. Cannot be determined
RvdK
asked
Oct 3, 2024
by
RvdK
8.0k
points
Chemistry
high-school
1
answer
4
votes
226k
views
If 15.0 mL of 0.0250 M aqueous HNO3 is required to neutralize 10.0 mL of NaOH to the endpoint of the titration, what is the molarity of the NaOH?
Grier
asked
Oct 3, 2024
by
Grier
7.0k
points
Chemistry
high-school
1
answer
3
votes
115k
views
This is the chemical formula for zinc bromate: Zn(BrO₃)₂ . Calculate the mass percent of bromine in zinc bromate.
Baso
asked
Oct 3, 2024
by
Baso
8.7k
points
Chemistry
high-school
1
answer
1
vote
56.6k
views
Calculate the molar heat capacity at constant volume of a mixture containing 2 moles of monoatomic and 3 moles of diatomic ideal gas. A. R B. 2.1 R C. 3.2 R D. 4 R
Wlf
asked
Oct 3, 2024
by
Wlf
8.2k
points
Chemistry
high-school
1
answer
1
vote
214k
views
The chemical shift of the protons in acetone is δ2.06. How many hertz downfield from TMS will the resonance appear in a spectrum taken on a spectrometer operating at 300 MHz? A. 300 Hz B. 618 Hz C. 3000
Manjot
asked
Oct 3, 2024
by
Manjot
8.0k
points
Chemistry
high-school
1
answer
0
votes
704
views
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