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Recent questions in Chemistry
A strong base and a weak acid can co-exist in solutions a. True b. False
Bitoiu
asked
Dec 26, 2024
by
Bitoiu
8.6k
points
Chemistry
high-school
1
answer
0
votes
30.4k
views
If it takes 50 mL of 0.5 M KOH solution to completely neutralize 125 mL of sulfuric acid solution (H₂SO₄), what is the concentration of the H₂SO₄ solution?
Sergi Almar
asked
Dec 26, 2024
by
Sergi Almar
8.6k
points
Chemistry
high-school
1
answer
2
votes
25.0k
views
What is the product isotope formed when Te-106 undergoes alpha decay? A) Cd-102 B) Sn-104 C) Sn-102 D) Cd-104
Erin Stanfill
asked
Dec 26, 2024
by
Erin Stanfill
8.3k
points
Chemistry
high-school
1
answer
4
votes
126k
views
For the following combustion reaction: CH_3COOH(l)+2O_2(g)→2CO_2(g)+2H_2O(g) with ΔH=−8.74×10² kJ, when a 50.3-g sample of acetic acid (molar mass = 60.05 g/mol) is burned, how much energy (in kJ) is released
Nathan Campos
asked
Dec 26, 2024
by
Nathan Campos
8.1k
points
Chemistry
high-school
2
answers
0
votes
126k
views
Addition of ammonium sulfate to an unknown solution yields no precipitate. Addition of ammonium carbonate produces a white precipitate. Which are the possible metal ions. What further reactions or experiments
Muhammad Zeeshan
asked
Dec 26, 2024
by
Muhammad Zeeshan
8.7k
points
Chemistry
high-school
1
answer
3
votes
167k
views
Acetic acid is a weak monoprotic acid. Its concentration is 0.20M and its equiLiBrium concentration of H ions is 0.0019M. Calculate its Ka value.
Roget
asked
Dec 26, 2024
by
Roget
8.4k
points
Chemistry
high-school
1
answer
1
vote
69.4k
views
Which element is classified as a noble gas? О о ΟΝ O CI O Xe
Grajsek
asked
Dec 26, 2024
by
Grajsek
7.7k
points
Chemistry
college
1
answer
1
vote
4.4k
views
The vertical distance from the bottom of the ship's keel to the waterline is known by what term? (a) Draft (b) Trim (c) Buoyancy (d) Displacement
Paul Stansifer
asked
Dec 26, 2024
by
Paul Stansifer
8.7k
points
Chemistry
high-school
1
answer
5
votes
9.5k
views
For which of the following substances is the least energy required to convert one mole of the solid into separate ions? (a) MgO (b) SrO (c) KF (d) CsF (e) MgF₂
EpicUsername
asked
Dec 26, 2024
by
EpicUsername
7.7k
points
Chemistry
high-school
1
answer
2
votes
217k
views
Which of the following types of molecule is the most abundant in an interstellar molecular cloud?
Iterniam
asked
Dec 26, 2024
by
Iterniam
8.0k
points
Chemistry
high-school
1
answer
2
votes
16.7k
views
Remember if you have a triangle of electrons, check for the charge. A) Cation B) Anion C) Radical D) Neutron
Hgolov
asked
Dec 26, 2024
by
Hgolov
7.9k
points
Chemistry
high-school
1
answer
4
votes
14.3k
views
Hello , help me please)
Jonas Lincoln
asked
Dec 26, 2024
by
Jonas Lincoln
8.7k
points
Chemistry
college
1
answer
3
votes
162k
views
In the EPR part of the book 'Physical methods in Inorganic Chemistry' by S. Drago i found that relative magnitudes of crystal field and spin-orbit coupling affect the g values. I understand that the chemical
Quantumbutterfly
asked
Dec 26, 2024
by
Quantumbutterfly
8.1k
points
Chemistry
high-school
1
answer
2
votes
199k
views
Which of the following pairs is arranged with the particle of higher polarizability listed first? a. Se²⁻, S²⁻ b. I, I⁻ c. Mg²⁺ , mg d. Br, I e. none of these choices is correct.
Bob Cavezza
asked
Dec 26, 2024
by
Bob Cavezza
7.5k
points
Chemistry
high-school
1
answer
2
votes
131k
views
Give the empirical formula of 81.68% C, 18.32% H.
Nnrales
asked
Dec 26, 2024
by
Nnrales
7.5k
points
Chemistry
high-school
1
answer
4
votes
20.0k
views
The method of carbon dating used to determine age depends upon the assumption that: A. the half-life of 14C changes when it is ingested. B. all ingested 14C is incorporated into the body. C. the half-life
Adil Bhatty
asked
Dec 26, 2024
by
Adil Bhatty
7.6k
points
Chemistry
high-school
1
answer
2
votes
142k
views
Which of the following best completes the statement? Within a shell (the same valence of n for all electrons), s electrons are screened _____ than p electrons, p electrons are screened _____ than d electrons.
Aprill
asked
Dec 26, 2024
by
Aprill
8.0k
points
Chemistry
high-school
1
answer
1
vote
229k
views
Which solution below contains the highest total quantity (moles) of dissolved sodium ions? A) 100. mL of 4.0 M NaCl B) 75.0 mL of 3.0 M Na₂SO₄ C) 50.0 mL of 8.0 M NaOH D) 50.0 mL of 2.0 M Na₃PO₄ E) none
Shaun Shia
asked
Dec 26, 2024
by
Shaun Shia
7.6k
points
Chemistry
high-school
2
answers
5
votes
129k
views
Determine how many moles of NaHCO3 are reacted. The molar mass of NaHCO3 is 84.0 g/mol.
Galatians
asked
Dec 26, 2024
by
Galatians
8.4k
points
Chemistry
college
1
answer
2
votes
205k
views
10.0 mL of 0.50 M sulfuric acid (H2SO4) neutralizes mL of 0.50 M sodium hydroxide (NaOH) solution
Glanden
asked
Dec 26, 2024
by
Glanden
8.3k
points
Chemistry
college
1
answer
2
votes
24.9k
views
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