Recent questions in Chemistry

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A replenisher is added to the processing solution to: Option 1: Compensate for the loss of solution strength Option 2: Ensure uniform results between solution changes Option 3: Compensate for the loss

Nicolai Harbo asked Oct 10, 2024

by Nicolai Harbo

7.6k points

1 answer

1 vote

218k views

Which substance has the highest boiling point among CH₄, KCl, CS₂, and HF? A. CH₄ B. KCl C. CS₂ D. HF

DanCue asked Oct 10, 2024

by DanCue

8.2k points

1 answer

5 votes

83.8k views

A ___ star has a greater temperature than a ___ star.

John Archer asked Oct 10, 2024

by John Archer

8.4k points

1 answer

3 votes

4.0k views

Write a balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous nickel (ii) chloride to form solid nickel (ii) hydroxide and aqueous potassium chloride.

YannPl asked Oct 10, 2024

by YannPl

8.5k points

2 answers

0 votes

81.7k views

For a ground state electron configuration, what is the next electron orbital to fill after the following orbitals have electrons in them? 1s 2s 2p 3s 3p 4s

Seun asked Oct 10, 2024

by Seun

7.7k points

1 answer

5 votes

67.1k views

How many atoms are present in 70g of H2S

Darigaaz asked Oct 10, 2024

by Darigaaz

8.8k points

1 answer

3 votes

2.9k views

How long does a bleach high level disinfection have to soak?

Ndomanyo asked Oct 10, 2024

by Ndomanyo

7.3k points

1 answer

4 votes

109k views

Because benzene is highly unsaturated, it can undergo regular reactions of alkenes, such as addition or oxidation. A) True B) False

Vinay Patil asked Oct 10, 2024

by Vinay Patil

8.1k points

1 answer

0 votes

172k views

Biotech and regular, synthetic polymers are chemicals used in a wide range of every day products, from plastic grocery bags and water bottles to auto parts in twice. What most likely makes biotic polymers

Fjanisze asked Oct 10, 2024

by Fjanisze

8.7k points

1 answer

5 votes

233k views

Some aquatic organisms use calcium carbonife: A. for respiration B. to make carbonic acid C. to make their shells D. to make carbon sinks

Barlop asked Oct 10, 2024

by Barlop

8.2k points

1 answer

3 votes

196k views

Changes whereby heat is absorbed before the reaction takes place.

XavM asked Oct 10, 2024

by XavM

7.9k points

1 answer

4 votes

117k views

TACACCGGTCAC Give the amino acids that are coded for on the above molecule (use ) A) Methionine - Proline - Arginine B) Tyrosine - Threonine - Aspartic Acid C) Serine - Glycine - Leucine D) Cysteine -

Thiru asked Oct 10, 2024

by Thiru

7.6k points

1 answer

2 votes

181k views

Which of the following options correctly represents a nuclear fission equation for uranium-238? A) 238U + 1n → 239U + γ B) 238U + 1n → 239U + 2n C) 238U + 1n → 235U + 4He D) 238U + 1n → 236U + 2n

Antonio asked Oct 10, 2024

by Antonio

6.8k points

1 answer

5 votes

49.7k views

. An engineer attaches a piece of silver to the iron storage tank in an attempt to supply the tank with cathodic protection. Which is the anode in this cell? and Which is the cathode in this cell?

Bruno Martins asked Oct 10, 2024

by Bruno Martins

8.0k points

1 answer

4 votes

153k views

When aqueous solution of NaCl is electrolyzed…… a. Cl2 is evolved at the cathode b. H2 is evolved at cathode c. Na is deposited at the cathode d. Na appears at the anode

Rezo Megrelidze asked Oct 10, 2024

by Rezo Megrelidze

8.7k points

1 answer

4 votes

189k views

Extinguishing agents such as ______ interrupt or inhibit the combustion reaction and stop chemical flame production. a) Water b) Foam c) Halons d) Sand

Nick Moore asked Oct 10, 2024

by Nick Moore

8.3k points

1 answer

4 votes

23.0k views

Describe the Kd graph and the equation associated with it.

Fernando Urkijo asked Oct 10, 2024

by Fernando Urkijo

8.1k points

1 answer

3 votes

137k views

3-methylpentanoyl chloride > benzoic anhydride > butyl acetate > propionamide A) Increasing Boiling Points B) Decreasing Reactivity C) Alphabetic Order D) Molecular Weight Order

Busta asked Oct 10, 2024

by Busta

8.1k points

1 answer

2 votes

213k views

10 L of a gas at 5.0 atm pressure at 25°C goes through the following expansion, compression steps while in an insulated container which cannot gain or lose heat. 1) Pressure is dropped to 2.0 atm. 2) Gas

Nieve asked Oct 10, 2024

by Nieve

7.3k points

1 answer

3 votes

149k views

The Voyager space probes launched in the 1970s use thermoelectric generation from plutonium sources to generate ~100W of power to keep the probes running when they go very far from the sun. Some small

Markus Rudel asked Oct 10, 2024

by Markus Rudel

7.9k points

1 answer

4 votes

176k views

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