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Which of the following is true for some, but not all, spontaneous processes? a) Increase in entropy b) Decrease in energy c) Absorption of heat d) Reversible reaction

Vivek Warde asked Dec 25, 2024

by Vivek Warde

8.2k points

1 answer

2 votes

208k views

What is the ph of a 0.1 m solution of sodium acetate? the pka of acetic acid is 4.76.

Aldur asked Dec 25, 2024

by Aldur

7.7k points

1 answer

5 votes

77.4k views

HEEEEELP!!!! Why is knowing the concentration of solutions important in the real world? Give an example to help you explain your answer.

Nirmal Prajapat asked Dec 25, 2024

by Nirmal Prajapat

7.2k points

2 answers

1 vote

109k views

The following benefits to a properly executed coronal polish:

Saus asked Dec 25, 2024

by Saus

7.8k points

1 answer

5 votes

16.2k views

what is the molarity of the mixture of two solutions first solution is 4M and 10L second solution is 2M and 40L

Inquam asked Dec 25, 2024

by Inquam

8.2k points

1 answer

1 vote

206k views

17. How much 4M Mg(OH)₂ do you need to neutralize 8L of 2M H₂SO4? Given: C₂V₁-CVb a)4L b)6L c)8L d)16L e)32L SO

Tucuxi asked Dec 25, 2024

by Tucuxi

8.4k points

1 answer

4 votes

218k views

What can we do to remediate or stop flow of contaminants?

Ralfeus asked Dec 25, 2024

by Ralfeus

8.4k points

1 answer

3 votes

43.8k views

enter the chemical formula for the anion present in the aqueous solution of cu(c2h3o2)2 . express your answer as a chemical formula. do not include coefficients or phases in your response.

Meteorite asked Dec 25, 2024

by Meteorite

8.1k points

2 answers

0 votes

48.2k views

Which of the following displacement reactions is expected? 1. 2 KCl + Hg → HgCl2 + 2 K 2. 2 KCl + Hg → K2Hg + Cl2 3. 2KF+Cl2 →2KCl+F2 4.2KCl+F2 →2KF+Cl2

Rushikesh Chaskar asked Dec 25, 2024

by Rushikesh Chaskar

7.5k points

1 answer

4 votes

147k views

Currently I am working on a chemistry project about hand warmers. My goal is to find a salt hydrate which gets warmer than sodium acetate trihydrate and can supercool. I already bought magnesium nitrate

MaVCArt asked Dec 25, 2024

by MaVCArt

8.5k points

1 answer

2 votes

235k views

The diameter of the nucleus of a hydrogen atom is about 1 x 10^-2 meters. The diameter of the entire atom is 10,000 times that size. What is the approximate diameter of a hydrogen atom expressed in scientific

Chela asked Dec 25, 2024

by Chela

7.8k points

1 answer

1 vote

199k views

What is the Percentage of Fluorine as F- in a HF (pKa= 3.33 ) solution at pH= 2.33?

Peter Pete asked Dec 25, 2024

by Peter Pete

8.0k points

1 answer

5 votes

92.6k views

What is the order of a regular molecular orbital? a) Sigma 1s b) Sigma 2s c) Sigma 1p d) Sigma 2p

Josh Correia asked Dec 25, 2024

by Josh Correia

8.4k points

1 answer

5 votes

96.1k views

What materials do you need to do this exercise? 1) Fifteen containers: five large, five medium, and five small 2) At least one 100-ml graduated cylinder 3) Larger and smaller cylinders (optional) 4) Colored

Mikebloch asked Dec 25, 2024

by Mikebloch

7.7k points

1 answer

1 vote

203k views

Consult the Arrhenius plot to answer the following. The rate constant (k) has units of L/(mol s) and temperature (T) in K. Equation of the best fit line is printed. a. True b. False

Alex Gusev asked Dec 25, 2024

by Alex Gusev

7.3k points

1 answer

4 votes

184k views

A cylindrical shoe polish tin is 10 cm in diameter and 3.5 cm deep. a. Calculate the capacity of the tin in cm^3. b. When full, the tin contains 300 grams of polish. Calculate the density of the polish

Rhurwitz asked Dec 25, 2024

by Rhurwitz

8.1k points

1 answer

5 votes

187k views

A dye often used for its ease and sensitivity to visualize nucleic acid after agarose gel electrophoresis is? 1) nigrosin 2) malachite green 3) gold oxide 4) ethidium bromide

Anton Kovalyov asked Dec 25, 2024

by Anton Kovalyov

6.9k points

1 answer

1 vote

178k views

What is the partial pressure of chlorine gas, in mmHg, at 0.00 degrees Celsius and 1 atm in a gaseous mixture containing 46.5% nitrogen, 12.7% neon, 40.8% chlorine, by mass? a) 407.5 mmHg b) 562.4 mmHg

Kmontgom asked Dec 25, 2024

by Kmontgom

7.5k points

1 answer

5 votes

164k views

During osmosis, the solvent is moving from a diluted solution (high solvent concentration) to a ___________ solution (low solvent concentration).

Don Gossett asked Dec 25, 2024

by Don Gossett

8.3k points

1 answer

1 vote

139k views

Chlorofluorocarbons, hydrochlorofluorocarbons, hydrobromofluorocarbons (HBFCs) and halons are? 1) Greenhouse gases 2) Ozone-depleting substances 3) Air pollutants 4) Water pollutants

Thomas Depole asked Dec 25, 2024

by Thomas Depole

7.5k points

1 answer

0 votes

5.0k views

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