Recent questions in Chemistry

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How to find the volume of this and the density if the mass is 850g

Dan Laffan asked Dec 28, 2023

by Dan Laffan

3.1k points

1 answer

42 votes

278k views

How does the composition of a pure compound differ from that of a mixture.

Michael Nana asked Dec 28, 2023

by Michael Nana

2.8k points

1 answer

3 votes

278k views

The relative atomic mass of copper is 63.5. Explain why this value is not a whole number

Andrey Dyatlov asked Dec 28, 2023

by Andrey Dyatlov

3.0k points

2 answers

38 votes

275k views

River water is filtered then sterilised to make drinking water. Why are these two processes done?

Anijhaw asked Dec 28, 2023

by Anijhaw

3.2k points

1 answer

36 votes

474k views

A hot pot of water is set on the counter to cool.After a few minutes it has lost 450 j of heat energ. How much heat energy has the surrounding air gained?

Dan Belden asked Dec 28, 2023

by Dan Belden

2.5k points

1 answer

28 votes

306k views

Mechanical energy is? (ANSWER FAST) A. Potential energy minus destroyed energy B. The sum, or combination of kinetic and potential energy C. Kinetic energy minus destroyed energy D. Kinetic energy minus

Ininiv asked Dec 28, 2023

by Ininiv

2.7k points

1 answer

33 votes

200k views

How many compounds are found in 2.3 moles of Ca(NO3)2?

Tyler Clendenin asked Dec 28, 2023

by Tyler Clendenin

3.2k points

1 answer

8 votes

534k views

E. ReadA stained silver platter is placed in acontainer with aluminum foil, hot water,and baking soda. A few minutes later, thesilver platter is sparkling clean.U. FSay whether a chemical reaction took

Mirta asked Dec 28, 2023

by Mirta

2.9k points

1 answer

23 votes

85.3k views

Potassium hydroxide → potassium oxide + water - how do i balance this equation?

Tal Mantelmakher asked Dec 28, 2023

by Tal Mantelmakher

2.4k points

1 answer

27 votes

146k views

True or False Cells are the tiny structures that make up living things.

Nembleton asked Dec 28, 2023

by Nembleton

2.7k points

2 answers

39 votes

320k views

Which of the following is NOT an example of pseudoscience? A. Psychics B. Healing crystals C. Vaccines D. Acupuncture

Spydon asked Dec 28, 2023

by Spydon

2.7k points

2 answers

44 votes

43.6k views

If 1. 23 g of chlorine gas dissolves in 0. 95 L of water at 15. 6 psi, at what pressure (in psi) would you be able to dissolve 1. 89 g in the same amount of water?

Egghese asked Dec 28, 2023

by Egghese

2.7k points

1 answer

31 votes

518k views

What group in the periodic table has to gain 3 electrons to fill their outer shell?

Newtopian asked Dec 28, 2023

by Newtopian

2.5k points

1 answer

42 votes

369k views

A 4-kg mass at the Earth's surface weighs about _________________ Newtons.

Z Douglas asked Dec 28, 2023

by Z Douglas

3.0k points

1 answer

11 votes

336k views

What type of diagram is this? is it a proteins or lipid diagram?

Eliko asked Dec 28, 2023

by Eliko

3.1k points

2 answers

21 votes

499k views

How do i calculate this?

Nick Alexander asked Dec 28, 2023

by Nick Alexander

2.7k points

1 answer

13 votes

138k views

Question is in the picture. thank you

Woss asked Dec 28, 2023

by Woss

2.9k points

1 answer

2 votes

23.5k views

Why is it suggested to use soap to a person suffering from bee or ant bite?

Almulo asked Dec 28, 2023

by Almulo

3.1k points

2 answers

29 votes

306k views

2. HOA2+H20 . → H3O+ + OA-CIn this reaction:(i) OA c is the conjugate base of H2O(ii)OA-c is the conjugate base of HOAc (iii) H3O+ is theсconjugate base of HOA.(iv) H3O+ is the conjugate acid of H2O(a)

Ben Keating asked Dec 28, 2023

by Ben Keating

3.1k points

1 answer

4 votes

196k views

I share a border with the United States. Most of my large cities are inland to avoid the natural disasters (hurricanes, tsunamis, and volcanoes) that occur on the coast One of my main exports is petroleum

CptNemo asked Dec 28, 2023

by CptNemo

2.4k points

1 answer

13 votes

470k views

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