Recent questions in Chemistry

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Why are brackets placed around the reagents ?

Pingjiang Li asked Oct 12, 2024

by Pingjiang Li

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Question 3 of 25 Which reaction is both a redox reaction and a combustion reaction? OA. 2C₂H6+702-4C0₂ + 6H₂0 B. 2A1+3Br₂ → 2AlBr3 OC. C+0₂ CO₂ O D. Mg + CuCl, → MgCl2 + Cu SUBMIT

Nico Erfurth asked Oct 12, 2024

by Nico Erfurth

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4 votes

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aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and of hydrogen gas over water at and . how many grams of aluminum reacted? the partial pressure of water at is . round your

Mkosmala asked Oct 12, 2024

by Mkosmala

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1 answer

2 votes

73.3k views

If a reaction is endothermic, the amount of heat appears on the _____side of the arrow in the balanced equation? 1) left 2) right 3) both sides 4) cannot be determined

Autistic asked Oct 12, 2024

by Autistic

7.5k points

1 answer

5 votes

117k views

You release two gases into a room, sodium sulfite and sodium hydroxide, which one will diffuse faster? How much faster will it diffuse?

Miguel Guardo asked Oct 12, 2024

by Miguel Guardo

8.2k points

1 answer

2 votes

87.8k views

What is not an example of a. Catalyst

Massimo Variolo asked Oct 12, 2024

by Massimo Variolo

7.3k points

1 answer

5 votes

25.2k views

Several properties of water are shown. Classify each property as a physical property or a chemical property. can be split into hydrogen and oxygen is liquid at room temperature has a density of 1.0 g/cm3

Jamie Twells asked Oct 12, 2024

by Jamie Twells

8.0k points

1 answer

1 vote

60.8k views

Calculate the standard free-energy change at 25°C for the given reaction using standard reduction electrode potentials: 3Cu(s)+2NO₃−(aq)+8H+(aq)→3Cu₂⁺(aq)+2NO(g)+4H₂O(l).

Joonsang asked Oct 12, 2024

by Joonsang

7.9k points

1 answer

1 vote

228k views

What is capillary condensation? a. Water bonds to the outer surfaces of a material, and as more water condenses it tries to spread out and wet as much of the surface as possible to minimize its energy

Samuel Pinto asked Oct 12, 2024

by Samuel Pinto

9.3k points

1 answer

3 votes

116k views

I need help with my organic chemistry assignment

Grefab asked Oct 12, 2024

by Grefab

8.2k points

1 answer

4 votes

225k views

You are given three test tubes. The three test tubes contain distilled water, acidic solution, and the basic solution, respectively. There is only blue litmus paper available in order to identify what

Unos asked Oct 12, 2024

by Unos

7.9k points

1 answer

3 votes

28.4k views

The temperature of a sample of copper increases from 20°C to 46.6 Celsius as it absorbs 23,641j of heat. What is the mass of the copper sample the specific heat of copper is 0.385 j/g c

Serdar Aylanc asked Oct 12, 2024

by Serdar Aylanc

8.4k points

1 answer

1 vote

161k views

The attractions between the CCl4 molecules that hold the molecules together in the solid state are best identified as what? a) Polar covalent bonds b) Nonpolar covalent bonds c) Intermolecular attractions

Tobias Hotzenplotz asked Oct 12, 2024

by Tobias Hotzenplotz

8.6k points

1 answer

0 votes

35.0k views

This question is about zinc and compounds of zinc. A student produces pure crystals of zinc chloride by reacting zinc oxide with hydrochloric acid. The equation for the reaction is: ZnO(s) + 2HCl(aq)=ZnCl₂(aq)

Jonathan Dunlap asked Oct 12, 2024

by Jonathan Dunlap

9.4k points

1 answer

4 votes

120k views

sample of a compound known to consist of only carbon, hydrogen, and oxygen is found to have a total mass of 29.05 g. if the mass of the carbon is 18.02 g and the mass of the hydrogen is 3.03 g, what is

John Mangual asked Oct 12, 2024

by John Mangual

8.7k points

1 answer

0 votes

78.7k views

Whenever you have a carbonyl rxn in acidic conditions, what is the first step?

Joe Hoeller asked Oct 12, 2024

by Joe Hoeller

8.2k points

1 answer

2 votes

91.1k views

How did arranging elements by comparing atomic mass with other chemical and physical properties allow Mendeleev to predict the reactivity of undiscovered elements?

Dawn T Cherian asked Oct 12, 2024

by Dawn T Cherian

8.4k points

1 answer

3 votes

198k views

How many unpaired electrons are there in an atom of zirconium (Zr)? A. 0 B. 2 C. 4 D. 6

Dkim asked Oct 12, 2024

by Dkim

7.6k points

1 answer

0 votes

197k views

________ may be achieved using chlorine dioxide. 56) ______ A) Antisepsis B) Degerming C) Disinfection D) Sterilization E) Both antisepsis and degerming

Ran QUAN asked Oct 12, 2024

by Ran QUAN

9.0k points

1 answer

5 votes

190k views

Kai takes a hamburger off of the grill and puts a piece of cheese on it. Explain how and why the cheese melts when Kai puts it on the hamburger. O 8 of 9 Done O Sign out ES

Wordsforthewise asked Oct 12, 2024

by Wordsforthewise

7.6k points

2 answers

4 votes

25.0k views

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