Recent questions and answers in Chemistry

Recent questions and answers in Chemistry

Why is phenacetin more polar than aspirin?

Jastram answered Jan 4

8.7k points

1 answer

0 votes

100k views

Describe an experimental method to determine the limiting molar conductivity of a NaOH aqueous solution at 298.15 K.

Catt answered Jan 4

by Catt

8.5k points

1 answer

0 votes

197k views

Solid pollutants, such as flyash, are produced when burning: __________ a. Natural gas b. Coal c. Light fuel oil d. Propane

Peter Sirka answered Jan 4

8.6k points

1 answer

5 votes

212k views

The particle shown contains an equal number of protons and electrons. True False

Wuct answered Jan 4

by Wuct

8.2k points

1 answer

1 vote

153k views

AS Chemistry Unit 1.3: Mole Calculations (Moles & Mass) Relative Molecular Mass 1. Calculate the relative molecular mass of: a) H₂SO4 40-11(14.0x2)+(6x18 b) Ca(NO3)2 c) CuSO4.7H₂O (2x1) + 32.1 + (16x 4)

MadMac answered Jan 4

by MadMac

7.8k points

1 answer

0 votes

165k views

Molecular Orbital Approximation a) χ = ψ b) χ ≠ ψ c) Φ = χ d) Φ ≠ χ

Nicolas Roard answered Jan 4

by Nicolas Roard

8.0k points

1 answer

2 votes

134k views

Name the type of solution in each beaker with respect to the carrot pieces. (a) In the first beaker the solution is hypertonic and in the second beaker it is hypotonic (b) In the first beaker the solution

Gus E answered Jan 4

by Gus E

8.0k points

1 answer

2 votes

150k views

Determine the mass in grams of 2.5 mol of nitrogen. ( moral mass of nitrogen = 14 g/mol)

Keammoort answered Jan 4

8.0k points

1 answer

4 votes

77.3k views

Which compound has a higher boiling point, ethanol or dimethyl ether? Explain

Franz Wexler answered Jan 4

by Franz Wexler

7.6k points

1 answer

2 votes

192k views

How can you determine the number of valence electrons in a atom of a representative element?

Stef Heyenrath answered Jan 4

by Stef Heyenrath

8.1k points

2 answers

5 votes

185k views

Can I get any help for 25pts

GlassZee answered Jan 4

9.1k points

1 answer

2 votes

201k views

The stinger a magnet is A the harder the metal B the larger the force C the smaller the force D the softer the metal

DockYard answered Jan 4

8.3k points

1 answer

1 vote

158k views

How was the infrared radiation effected by carbon dioxide and water vapor ?

Droydn answered Jan 4

by Droydn

7.9k points

1 answer

3 votes

210k views

A quantity of substance A was taken along with its weakness of substance B. When the reaction reached equilibrium, it was found that the remaining substance A equals 2 moles. If you know that the value

Dzemal answered Jan 4

by Dzemal

7.9k points

1 answer

2 votes

81.0k views

What is required to calculate the equilibrium constant of a chemical reaction? Responses the concentration of products and reactants the change in entropy of the reaction the energy of the reaction the

Julik answered Jan 4

by Julik

7.7k points

1 answer

0 votes

197k views

What is the molecular geometry for germanium disulfide?

Bryan Roberts answered Jan 4

by Bryan Roberts

7.7k points

1 answer

2 votes

54.4k views

Complete the table. There is enough information given for each element to determine all missing numbers.

Lukuluku answered Jan 4

8.5k points

1 answer

5 votes

86.8k views

Despite their physical differences, the halogens in Group 7A are all highly reactive ___________. a) metals b) nonmetals c) metalloids d) noble gases

Morton answered Jan 4

by Morton

8.8k points

1 answer

4 votes

77.9k views

The hydrogen content of the oil (about 14%) unites with the oxygen in the air and produces water. a) Nitrogen b) Carbon c) Helium d) Sulfur

Mzereba answered Jan 4

8.1k points

1 answer

0 votes

192k views

T/F: each round of the calvin cycle uses 5 molecules of CO2 to produce one molecule of glyceraldehyde 3-phosphate and one pyruvate

Benjamin H Boruff answered Jan 4

by Benjamin H Boruff

8.3k points

1 answer

5 votes

63.8k views

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