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Explain change in entropy of a chemical reaction in vacuum.

Li Ying asked Oct 12, 2024

by Li Ying

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All of the following are unique properties of water except ____ Water has high specific heat. Water has high heat of vaporization. Water expands when it freezes. Water is a non polar molecule.

Zeeshan Akhter asked Oct 12, 2024

by Zeeshan Akhter

7.9k points

1 answer

2 votes

128k views

ay for Bond \( X \) today? (Hint: You will need to know how much the bond will be worth at the end of 5 years.) Do not round intermediate calculations. Round your answer to the nearest cent. 3

Blokberg asked Oct 12, 2024

by Blokberg

8.3k points

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2 votes

50.1k views

find the pka of an acid which has an initial concentration of 1.497 m for the acid and an equilibrium ph of 2.546.

Shaydawg asked Oct 12, 2024

by Shaydawg

7.9k points

1 answer

2 votes

98.0k views

How would one prepare magnesium citrate from magnesium chloride and citric acid? Will it work if I just heat a mixture of magnesium chloride and citric acid in water? I'd expect HCl to vaporize off. Does

Rayne asked Oct 12, 2024

by Rayne

8.8k points

1 answer

5 votes

154k views

A is used to indicate roots. a) radical symbol b) exponent c) integer d) fraction

Rdalmeida asked Oct 12, 2024

by Rdalmeida

8.2k points

1 answer

1 vote

121k views

Fluorescent proteins played an important role in studies of protein expression copy number regulation in cells. For this problem, consider a fluorescent protein that can be in either an 'on' or 'off' state,

MoSwilam asked Oct 12, 2024

by MoSwilam

7.9k points

1 answer

3 votes

218k views

Collect data by measuring CO levels with the set parameters. Record the data obtained in a table or chart. Analyze the results and look for patterns or relationships between CO levels and other factors.

Quantum asked Oct 12, 2024

by Quantum

8.2k points

1 answer

5 votes

135k views

Which pH or pOH is incorrectly matched with its description? a. pH=1.32-distinctly acidic b. pOH= 13.8- disctinctly basic c. pOH= 7.8- slightly acidic d. pH=12.5 distinctly basic e. pH= 6.7- slightly acidic

Hodaya Shalom asked Oct 12, 2024

by Hodaya Shalom

8.9k points

1 answer

0 votes

42.4k views

Calculate the density of a rock with a volume of 15 cm³ and a mass of 48 g. Show your work.

Frank Zalkow asked Oct 12, 2024

by Frank Zalkow

8.5k points

1 answer

4 votes

145k views

List the processes that release carbon into the atmosphere

Chanwcom asked Oct 12, 2024

by Chanwcom

8.0k points

1 answer

1 vote

71.2k views

Identify the type of chemical reaction. 1. 2KOH₍aq₎ + CuSO₄₍aq₎ → Cu(OH)₂₍s₎ + K₂SO₄₍aq₎ --> ? 2. 2Al₍s₎ + 3Br₂₍l₎ → 2AlBr₃₍s₎ --> ? 3. 4PBr₃₍l₎ → P₄₍s₎ + 6Br₂₍l₎ --> ? 4. 2C₂H₆₍g₎ + 7O₂₍g₎ → 4CO₂₍g₎ +

Stanislav Poslavsky asked Oct 12, 2024

by Stanislav Poslavsky

7.7k points

1 answer

2 votes

33.5k views

What agent reduces all exposed, energized, halide crystals to black metallic silver?

Atanas Korchev asked Oct 12, 2024

by Atanas Korchev

7.5k points

1 answer

0 votes

7.9k views

A group of students heated magnesium ribbon over a Bunsen burner until it burned, reacting with the oxygen in the air. One student heated the magnesium until all the metallic solid was replaced by a dull

Damon Snyder asked Oct 12, 2024

by Damon Snyder

8.1k points

1 answer

1 vote

17.7k views

Derived unit approximately equal to the volume of one gram of one gram of water at room temperature.

Marius Andersen asked Oct 12, 2024

by Marius Andersen

8.6k points

1 answer

4 votes

91.5k views

One of the mnemonic device "OIL RIG" is used to remember the principles of redox reactions. Oxidation Is Loss and Reduction is Gain of what?

Ali Ben Zarrouk asked Oct 12, 2024

by Ali Ben Zarrouk

8.0k points

1 answer

5 votes

102k views

Cystine has 2 hydrogen bond acceptors and __ donors. A) 0 B) 1 C) 2 D) 3

Niayesh Isky asked Oct 12, 2024

by Niayesh Isky

8.3k points

1 answer

1 vote

42.0k views

What is the formula for copper(II) sulfate? Cu2S A: Cu2SO4 B: CuSO4 C: CuS Choose the correct answer

Jodyann asked Oct 12, 2024

by Jodyann

8.3k points

1 answer

4 votes

68.0k views

Rank the compounds below with the strongest acid at the top. 1) benzoic acid, ka = 6.46× 10-5 2) acetic acid, ka = 1.76× 10-5 3) hydrazoic acid, hn3 4) carbonic acid, H₂CO₃ 5) formic acid, HCOOH

Pablo Ruan asked Oct 12, 2024

by Pablo Ruan

8.1k points

1 answer

3 votes

200k views

In an experiment, 0.1 g samples of Na2O, MgO, P4O10 and SO2, are added to separate 100cm^3 volumes of water. For which oxide is the resulting mixture most alkaline? A Na2O B MgO C P4O10 D SO2

Pushparaj asked Oct 12, 2024

by Pushparaj

7.2k points

1 answer

5 votes

85.0k views

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