Recent questions in Chemistry

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Why does the ice cream mix freeze to the inner walls of the ice cream maker?

Dmytro Sokolyuk asked Dec 27, 2024

by Dmytro Sokolyuk

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3 votes

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2. (01.06 LC) Which of the following correctly describes a compound? (4 points) The atoms are chemically bonded together, and they retain their individual physical and chemical properties. O The atoms

MrUpsidown asked Dec 27, 2024

by MrUpsidown

8.9k points

1 answer

2 votes

222k views

Calculate the pH of a solution that is:___________ (a) 0.0100 M in HCl and 0.0200 M in picric acid. (b) 0.0100 M in HCl and 0.0200 M in benzoic acid. (c) 0.0100 M in NaOH and 0.100 M in Na2CO3. (d) 0.0100

Oskar asked Dec 27, 2024

by Oskar

8.3k points

2 answers

3 votes

194k views

write a chemical reaction to show (a) carbon dioxide contains carbon element (b) carbon monoxide contains carbon element .

Zakhefron asked Dec 27, 2024

by Zakhefron

8.3k points

1 answer

5 votes

98.7k views

the three-way catalytic converters found in automobile exhaust systems have a direct role in: group of answer choices creating large amounts of cfcs. the conversion of ozone to oxygen converting no into

Olivier Tremblay asked Dec 27, 2024

by Olivier Tremblay

8.3k points

1 answer

0 votes

206k views

6. Calculate the pH of a buffer prepared by mixing 0.10 mol-L-' acetic acid (CH;COOH, HAc) and 0.10 mol L NaOH solution with the volume ratio of 3:1. (Answer pH = 4.45

Oleksii Kyslytsyn asked Dec 27, 2024

by Oleksii Kyslytsyn

8.5k points

2 answers

0 votes

205k views

an electron confined in a one-dimensional box is observed, at different times, to have energies of 12 evev, 27 evev, and 48 evev. part a what is the minimal length of the box? express your answer in nanometers.

PutraKg asked Dec 27, 2024

by PutraKg

7.6k points

1 answer

3 votes

204k views

According to the balanced reaction, how many moles of HNO₃ are formed from 3.75 moles of NO₂, if there is plenty of water present? a) 2.5 moles b) 5 moles c) 7.5 moles d) 10 moles

Marco Blos asked Dec 27, 2024

by Marco Blos

8.0k points

1 answer

2 votes

7.1k views

In Jamaican rum production, "dunder" refers to? 1) The product of fermentation, commonly 5 2) A rum with medium ester levels 3) The froth resulting from sugar cane processing 4) A sour mash added to the

Biruk Abebe asked Dec 27, 2024

by Biruk Abebe

8.5k points

1 answer

3 votes

210k views

how many valence electrons does each atom of arsenic (as) have? arsenic is element 33. it is in period 4 and family 15 (5a or the nitrogen family).

Memariaan asked Dec 27, 2024

by Memariaan

7.5k points

1 answer

1 vote

4.2k views

A nitrogen-hydrogen single bond can be broken by a photon with a wavelength of 3.06 x 10-7 m. What is the frequency in hertz (Hz) of this photon?

Jocke asked Dec 27, 2024

by Jocke

8.2k points

1 answer

1 vote

184k views

What are the splitting patterns of hydrogens on a molecule caused by?

Martinfleis asked Dec 27, 2024

by Martinfleis

8.2k points

1 answer

3 votes

1.1k views

If you have a radioactive sample of the isotope Carbon-14, what percentage of the parent isotope would you have after 5 half-lives? O 25% O 6.25% O 12.5% O 3.125%

VoVaVc asked Dec 27, 2024

by VoVaVc

7.7k points

1 answer

5 votes

121k views

Which of the following compounds can exhibit fac-mer isomerism? a. [cu(co)5cl]⁺ b. [fe(nh₃)₂(h₂o)₄]²⁺ c. [co(h₂o)₃(co)₃]³⁺ d. [fe(co)5no₂]²⁺ e. [cr(h₂o)4br₂]⁺

GuiFalourd asked Dec 27, 2024

by GuiFalourd

8.4k points

1 answer

4 votes

73.6k views

Half reaction of aquenous copper sulphate anode and cathode

Patience asked Dec 27, 2024

by Patience

7.8k points

1 answer

2 votes

157k views

A gas has a pressure of 699.0 mm Hg at 40.0 0C. This temperature is K. What is the temperature at 760.0 mm Hg? K (round to 1 decimal place) or degrees Celsius (round to one decimal place.

Culme asked Dec 27, 2024

by Culme

7.4k points

1 answer

1 vote

118k views

Give the spectator ions for the reaction that occurs when aqueous solutions of K₂CO₃ and HBr are mixed. a. H⁺ and Br⁻ b. H⁺ and CO₃²⁻ c. K⁺ and CO₃²⁻ d. K⁺ and Br⁻ e. no spectator ions are present.

Martin Thompson asked Dec 27, 2024

by Martin Thompson

7.8k points

1 answer

5 votes

182k views

Identify the number of atoms present in BaCl2

Cagdas Altinkaya asked Dec 27, 2024

by Cagdas Altinkaya

7.9k points

1 answer

2 votes

144k views

Charles' Law describes the relationship between... a) water and volume b) volume and pressure c) mass and volume d) temperature and volume e) there are no laws that explain what gases do in certain situations

Lukas Barth asked Dec 27, 2024

by Lukas Barth

8.7k points

1 answer

1 vote

198k views

Consider the reaction N₂O₄↽−−⇀2NO₂. The forward direction of this reaction is non-spontaneous and under standard conditions ΔG∘ = 4.76 kJ/mol. Suppose we begin with 1.00 bar of N₂O₄ and no products. Then,

Nulvinge asked Dec 27, 2024

by Nulvinge

7.8k points

1 answer

1 vote

126k views

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