Recent questions in Chemistry

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Balance the following chemical equation by adding coefficients to the compounds: AgI + Na₂S → Ag₂S + NaI

Schildmeijer asked Oct 3, 2024

by Schildmeijer

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A proton released by an acid in aqueous solution quickly reacts with water to form a hydronium ion. What product is formed when a proton reacts with ammonia (NH3)? A: NH3+ B: NH4 C: NH-2 D: NH4+

Akansha asked Oct 3, 2024

by Akansha

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Find the density of an unknown substance that has a mass of 25 grams and a volume of 4 cm³.?

Nelson Tatius asked Oct 3, 2024

by Nelson Tatius

8.4k points

1 answer

2 votes

129k views

A solution of 1. 8274g of a polypeptide in 274m. Of a aqueous solution has an osmetic pressure at 31. 40°c of 2. 012mmHg. The approximate molecular weight of this polymer is ____ g/mol

Paljenczy asked Oct 3, 2024

by Paljenczy

8.3k points

1 answer

1 vote

216k views

Nitrogen has five electrons in its outer orbital. How many hydrogens can it covalently bond to and have a neutral electrical charge

Kristyna asked Oct 3, 2024

by Kristyna

8.0k points

1 answer

1 vote

61.9k views

CH₃(CH₂)2CH₃ + O₂ → CO₂ + H₂O Limiting Reactant a) CH₃(CH₂)2CH₃ b) O₂ c) CO₂ d) H₂O

TheHamstring asked Oct 3, 2024

by TheHamstring

8.4k points

1 answer

0 votes

224k views

What type of radioactive decay is used in smoke detectors

Pawel Stradowski asked Oct 3, 2024

by Pawel Stradowski

7.1k points

1 answer

2 votes

94.0k views

Calculate the molarity of the resulting solution prepared by diluting 25.0 mL of 18.0% ammonium chloride, NH4Cl, (density = 1.05 g/mL) to a final volume of 80.0 mL. 0.292 M 0.059 M 1.10 M 0.0536 M 0.00105

Rapture asked Oct 3, 2024

by Rapture

8.2k points

1 answer

5 votes

219k views

Mixtures are chemically combined together False True

Prcu asked Oct 3, 2024

by Prcu

7.6k points

1 answer

5 votes

153k views

Can a discharged lithium battery catch fire?

Pivoman asked Oct 3, 2024

by Pivoman

8.4k points

1 answer

5 votes

179k views

16. 15. 14. 12. 13. a. b. C. d. 11 b. C. 9 d. 10 a. 10 a. b. a. C. d. b. C. d. a. b. 6 C. 7 d. 8 If the 2nd a. 5 b. 7 C. d. a. b. C. a. b. d. What is the correct electron configuration for the element:

Alfeu asked Oct 3, 2024

by Alfeu

7.6k points

1 answer

2 votes

102k views

Indicate the coordination number for the central metal atom in each of the following coordination compounds: (a) [Pt(H₂O)₂Br₂] (b) [Pt(NH₃)(py)(Cl)(Br)] (py = pyridine, C₅H₅N) (c) [Zn(NH₃)₂Cl₂] (d) [Zn(NH₃)(py)(Cl)(Br)]

Guapolo asked Oct 3, 2024

by Guapolo

8.3k points

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4 votes

117k views

What mass of calcium metal is produced when molten CaF₂ is electrolyzed by a current of 7.55 A for 13.2 h? A) 1.32 g B) 2.64 g C) 3.96 g D) 5.28 g

Luke Cowell asked Oct 3, 2024

by Luke Cowell

7.5k points

1 answer

4 votes

182k views

"What is the mass number of an element that has 27 protons, 27 electrons, and 32 neutrons?

Jithil P Ponnan asked Oct 3, 2024

by Jithil P Ponnan

8.4k points

1 answer

2 votes

131k views

When a puddle dries up, what are the particles of water really doing? a) Describe the process of water evaporation. b) Explain the molecular changes during evaporation. c) Discuss the environmental factors

John Peter asked Oct 3, 2024

by John Peter

8.5k points

1 answer

5 votes

108k views

If all cars were dropped from the same height would they have the same speed?

Mpetla asked Oct 3, 2024

by Mpetla

7.8k points

1 answer

0 votes

134k views

Assuming ideal solution behavior, what is the freezing point of a solution of dibromobenzene, C₆H₄Br₂, in 0.250 kg of benzene, if the solution boils at 83.5 °C? a) 3.04 °C b) 1.52 °C c) 2.56 °C d) 1.28

Musaddique S asked Oct 3, 2024

by Musaddique S

8.8k points

1 answer

0 votes

82.2k views

Documentation on film is required to legally present environmental problems in ____

Krystin asked Oct 3, 2024

by Krystin

8.2k points

1 answer

0 votes

120k views

Rank the following molecules according to their predicted elution order on the GC (i.e., what do you expect to see if you analyzed a sample containing all three

Mazatec asked Oct 3, 2024

by Mazatec

7.9k points

1 answer

3 votes

167k views

In what way is iron unique among the elements?

Romellem asked Oct 3, 2024

by Romellem

7.9k points

1 answer

5 votes

109k views

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