Recent questions in Chemistry

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why have some elements been known longer than others? why was it easier to find these elements such as gold, silver, and copper?

Palimondo asked Sep 27, 2024

by Palimondo

8.5k points

1 answer

0 votes

205k views

Two metallic elements that are an important membrane pump?

Stack asked Sep 27, 2024

by Stack

8.3k points

1 answer

2 votes

43.7k views

Identify the element described: "I am a metal that conducts electricity well, never found alone in nature, and usually gives up one valence electron. I have a one-letter symbol." a) Hydrogen b) Oxygen

Gernot asked Sep 27, 2024

by Gernot

8.4k points

1 answer

5 votes

202k views

The products of a chemical reaction contain the elements calcium, chlorine, hydrogen, oxygen and carbon. What elements were present in the reactants?

NPcomp asked Sep 27, 2024

by NPcomp

7.8k points

1 answer

5 votes

16.3k views

How many fluorine atoms are present in 5.65 g of c₂f₄ ?

Amir Koklan asked Sep 27, 2024

by Amir Koklan

8.2k points

1 answer

2 votes

31.3k views

Use the building-up principle to obtain the electron configuration for the ground state of the manganese atom (Z = 25).

Hirusha Fernando asked Sep 27, 2024

by Hirusha Fernando

8.7k points

1 answer

2 votes

127k views

What are the differences and similarities between the 3 methods of thermal energy?

Jonas Masalskis asked Sep 27, 2024

by Jonas Masalskis

8.7k points

1 answer

3 votes

61.0k views

Corrosion should be removed from magnesium parts with? a) Water b) Acidic solutions c) Alkaline solutions d) Abrasive materials

Venki asked Sep 27, 2024

by Venki

7.5k points

1 answer

2 votes

31.5k views

Fill in the blank ___will not change an objects motion ___can change an objects motion ___ push or pull __tendency to resist a change in motion __sum of all forces acting on an object in

Sazzadur Rahaman asked Sep 27, 2024

by Sazzadur Rahaman

8.3k points

1 answer

3 votes

42.4k views

Which would you expect to have the highest second ionization energy? o Li o O o C o K o Ne o F.

NewNameStat asked Sep 27, 2024

by NewNameStat

8.2k points

1 answer

2 votes

174k views

Calculate the pH for each of the following cases in the titration of 35.0 mL of 0.120 M KOH(aq), with 0.120 Number Note: Enter your answers with two decimal places. (a) before addition of any HI Number

JJP asked Sep 27, 2024

by JJP

9.0k points

1 answer

5 votes

14.8k views

We have radioactive elements that allow Earth's core to move. Also, plate tectonics recycles the crust and regulate ocean positioning. What is it?

NETQuestion asked Sep 27, 2024

by NETQuestion

8.3k points

1 answer

1 vote

96.7k views

Examples:Write the formulas for the following ioniccompounds with polyatomic ions. 1. Lithium hydroxide ________________________

Ajan Balakumaran asked Sep 27, 2024

by Ajan Balakumaran

8.9k points

1 answer

1 vote

31.7k views

What mass of chromium would be produced from the reaction of 57.0 g of potassium with 199 g of chromium(II) bromide according to the following reaction? Which reactant is in excess, and how many grams

Nene asked Sep 27, 2024

by Nene

8.7k points

1 answer

4 votes

229k views

Who is known as father of computer

Rosy asked Sep 27, 2024

by Rosy

6.7k points

1 answer

4 votes

52.8k views

Find the [OH⁻] and pH of a 0.010 M Ba(OH)₂ solution.

Astaroth asked Sep 27, 2024

by Astaroth

8.1k points

1 answer

2 votes

27.5k views

15 + x^3 ≤ 24 A) x > 9 B) x ≤ 3 C) x^2 > 9 D) x < 9

Nikola Hristov asked Sep 27, 2024

by Nikola Hristov

8.0k points

1 answer

2 votes

168k views

Draw the remaining products of the saponification of the following triacylglycerol (triglyceride):

Dimm asked Sep 27, 2024

by Dimm

8.5k points

2 answers

2 votes

231k views

How can you explain the fact that there are different "isotopes" of pennium? (Use the U.S. Mint webs research this)

SunChero asked Sep 27, 2024

by SunChero

7.8k points

1 answer

3 votes

51.6k views

If all edges of a cube are expanding at a constant rate, what shape does the cube take as it grows? A) Sphere B) Cylinder C) Rectangular Prism D) Irregular Polyhedron

RRStoyanov asked Sep 27, 2024

by RRStoyanov

8.0k points

1 answer

0 votes

192k views

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