Recent questions in Chemistry

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What statement best represents what a chemical reaction is? Option 1: A chemical reaction occurs when elements are physically combined to produce new mixtures. Option 2: A chemical reaction occurs when

Mahesh Bansod asked Dec 18, 2024

by Mahesh Bansod

8.4k points

1 answer

2 votes

206k views

How does ring size affect the IR spectra of cyclic ketones?

Nuwan asked Dec 18, 2024

by Nuwan

8.0k points

1 answer

4 votes

146k views

In which one of the following is the oxidation state of nitrogen given incorrectly? A. H2N20 2(+ 1) B. N2H4(-2) C. NaN3(-1) D. HN02(+3)

BeemerGuy asked Dec 18, 2024

by BeemerGuy

8.0k points

1 answer

2 votes

159k views

What metals do not experience ductile-to-brittle transition?

Mozzbozz asked Dec 18, 2024

by Mozzbozz

8.5k points

1 answer

1 vote

72.9k views

Calculate the volume of distilled water that should be added to 25cm³ of a 0.125moldm-³ HCL in order to dilute it 10 times, calculate the volume of the added water

Nikolay K asked Dec 18, 2024

by Nikolay K

8.2k points

2 answers

3 votes

15.7k views

Designate the acid and the base and the conjugate acid and conjugate base. Also, predict whether equilibrium lies predominantly to the left or to the right. HF + H₂O ↔ F⁻ + H₃O⁺

Allenaz asked Dec 18, 2024

by Allenaz

8.0k points

1 answer

1 vote

232k views

Are my answers correct?

STIKO asked Dec 18, 2024

by STIKO

7.7k points

1 answer

2 votes

196k views

A vessel contains a mixture of benzene (C6H6) and o-xylene (CgH10). At 225 deg C, the pressure in the vessel is 1000 kPa(abs). Using the data provided below, and any others necessary, what are the mass

Napuu asked Dec 18, 2024

by Napuu

7.8k points

1 answer

3 votes

65.0k views

What color does M-8 paper turn when exposed to an H type blister agent?

Gcw asked Dec 18, 2024

by Gcw

7.9k points

1 answer

4 votes

52.5k views

A) What is the ion formation equation for sodium (Na) with ionization energy values for each electron in the valence layer? - A. ( Na rightarrow Na⁺ + e⁻ ) - B. ( Na rightarrow Na⁺ + 2e⁻ ) - C. ( Na rightarrow

Ggrandes asked Dec 18, 2024

by Ggrandes

8.3k points

1 answer

4 votes

102k views

A 25.00- mL sample of an HNO3 solution is titrated with 0.143 M NaOH . The titration requires 28.83 mL to reach the equivalence point. What is the concentration of the HNO3 solution? 0.165 M 12.4 M 0.1240

Ryan Tate asked Dec 18, 2024

by Ryan Tate

7.8k points

1 answer

1 vote

124k views

When removing oil from an ammonia system the refrigerant live pressure is used to push out oil from the oil pot. A) true B) false

Stasiekz asked Dec 18, 2024

by Stasiekz

7.5k points

1 answer

1 vote

200k views

What is the density in g/l of a gas with a molar mass of 70.49?

Ajdeguzman asked Dec 18, 2024

by Ajdeguzman

8.3k points

1 answer

5 votes

195k views

A student walks 100 meters north and then turns around and walks 75 meters back to the south. A)-What is the student's distance travelled? B)-What is their displacement?

John Oxley asked Dec 18, 2024

by John Oxley

8.2k points

1 answer

3 votes

223k views

In this activity, you created multiple compounds. What was your test variable (independent variable)? a. The number and types of elements you picked for your compounds b. The types of compounds made c.

Ashot Karakhanyan asked Dec 18, 2024

by Ashot Karakhanyan

7.5k points

1 answer

4 votes

5.5k views

Even though an alcohol concentration of .08% is used as a guide ________.

Lasse A Karlsen asked Dec 18, 2024

by Lasse A Karlsen

7.8k points

1 answer

3 votes

62.8k views

Should scientists continue to find new ways to use ethanol?

DawnSong asked Dec 18, 2024

by DawnSong

9.2k points

1 answer

5 votes

157k views

An ideal gas at 20°c consists of 2.2×1022 atoms. 2.9 j of thermal energy are removed from the gas. What is the new temperature in °c?

Dkol asked Dec 18, 2024

by Dkol

8.3k points

1 answer

0 votes

30.0k views

A solution with a lower concentration of nonpermeable solutes in comparison to another solution. a) Isotonic b) Hypertonic c) Hypotonic d) Hemotonic

Joel Guerra asked Dec 17, 2024

by Joel Guerra

7.7k points

1 answer

2 votes

148k views

Why isn't CH4 (Methane) an acid?

Andry asked Dec 17, 2024

by Andry

8.3k points

1 answer

5 votes

75.5k views

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