Recent questions in Chemistry

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Write the chemical equation for the reaction: Al(s) + HCl(aq) → AlCl₃(aq) + H₂(g). a. Al(s) + HCl(aq) → AlCl₃(aq) + H₂(g) b. Al(s) + 3HCl(aq) → AlCl₃(aq) + 2H₂(g) c. 2Al(s) + 6HCl(aq) → 2AlCl₃(aq) + 3H₂(g)

JCJS asked Oct 15, 2024

by JCJS

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1 answer

1 vote

184k views

1pt What did Mendeleev do differently with his periodic table? O A. He left open spaces. OB. He organized in rows. OC. He organized in columns. O D. He organized by atomic mass.

Joselin asked Oct 15, 2024

by Joselin

7.8k points

1 answer

3 votes

158k views

A scientist observes that all gaseous planets take longer times to revolve around the sun than solid planets. Which of the following best explains why gaseous planets have longer revolution periods? (A)Distance

Taylan asked Oct 15, 2024

by Taylan

8.0k points

2 answers

0 votes

147k views

Which would not lower pH in the aquatic chamber? a. dead fish b. healthy elodea, c. decomposing elodea d. cellular respiration by the fish

Malik Bagwala asked Oct 15, 2024

by Malik Bagwala

8.1k points

1 answer

1 vote

127k views

The activation energy for a reaction is found to be 80kJmol¹. Calculaye the temperature at which the rate will be ten times that at 0°C. (3 marks)

Jevl asked Oct 15, 2024

by Jevl

7.5k points

1 answer

4 votes

180k views

Although NH₂ group is an ortho and para directing group, nitration of aniline gives along with ortho and para derivatives, meta derivative also.

Hilmi Erdem KEREN asked Oct 15, 2024

by Hilmi Erdem KEREN

7.8k points

1 answer

5 votes

66.6k views

By using only electron density arguments, determine whether the following reaction will occur?

Foo asked Oct 15, 2024

by Foo

8.2k points

1 answer

4 votes

43.9k views

For the reaction below, if Chlorine gas is added to the system, what will happen to the equilibrium? 2NOCl(g) ⇌ 2NO(g) + Cl₂(g)

Eduardo Romero asked Oct 15, 2024

by Eduardo Romero

9.2k points

1 answer

4 votes

20.7k views

What happens when there's more than one acceptable lewis structure?

Sheneka asked Oct 15, 2024

by Sheneka

8.4k points

1 answer

5 votes

103k views

The sodium potassium pump diretly generates a stable net negative charge inside the cell?

Abhay PS asked Oct 15, 2024

by Abhay PS

8.1k points

1 answer

1 vote

93.0k views

What is the mass percent concentration of a solution containing 25.0 g NaCl and 155 mL of water? Assume a density of 1.00 g/mL for water. a) 2.76% b) 6.20% c) 13.9% d) 16.1%

Denver Dang asked Oct 15, 2024

by Denver Dang

7.7k points

1 answer

4 votes

151k views

What cofactor is required for acetyl CoA carboxylase?

Deepak Mani asked Oct 15, 2024

by Deepak Mani

7.9k points

1 answer

0 votes

86.7k views

The H+ ion concentration of a solution is 5.9 x 10-3M. What is the pH of the solution?

Kerry Liu asked Oct 15, 2024

by Kerry Liu

8.1k points

1 answer

0 votes

40.1k views

Which statement is true about space technology? It has made air travel safer because photopolarimeters are used to send signals while flying at high altitudes. It has made road vehicles safer because magnetometers

Seku asked Oct 15, 2024

by Seku

7.2k points

1 answer

1 vote

168k views

The processing time of a chemical relaxer is affected by

Digital Plane asked Oct 15, 2024

by Digital Plane

8.7k points

1 answer

0 votes

222k views

Assign formal charges to each atom in the three resonance forms of n2o. Which resonance structure contributes the most to the overall structure of n2o?

Siem Abera asked Oct 15, 2024

by Siem Abera

7.6k points

1 answer

5 votes

448 views

What is the value of x? a) 7 b) 9 c) 42 d) 56

Dannio asked Oct 15, 2024

by Dannio

7.3k points

1 answer

5 votes

134k views

How could developing countries be persuaded to reduce the amount of pollution that they produce?

Pschild asked Oct 15, 2024

by Pschild

9.2k points

1 answer

4 votes

90.9k views

One factor that hampers the use of Miller-Urey experiments in studying the chemical processes that may have occurred on the early Earth is that the ________.

SDwarfs asked Oct 15, 2024

by SDwarfs

7.8k points

1 answer

0 votes

166k views

Despite their diversity, cells resemble each other to a remarkable degree in their chemistry. For example, the same twenty amino acids are used to make proteins. The 20 amino acids are identical to one

Alexmuller asked Oct 15, 2024

by Alexmuller

8.2k points

1 answer

2 votes

232k views

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