Recent questions in Chemistry

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Determine the number of protons and electrons in each ion- (a) Na (b) Ba²+ (c) 0²- (d) Co³+

Pretzelb asked Dec 27, 2023

by Pretzelb

3.2k points

1 answer

28 votes

231k views

Write balanced chemical equations for: a) coke + oxygen --> carbon dioxide b) carbon dioxide + coke --> carbon monoxide

Sahil Hariyani asked Dec 27, 2023

by Sahil Hariyani

2.7k points

1 answer

5 votes

294k views

Which option is an example of energy transfer via radiation

Akeshwar Jha asked Dec 27, 2023

by Akeshwar Jha

3.1k points

1 answer

12 votes

315k views

What is the condensed structural formulas of the reactants and products for hydrolysis of serylglycine

Nitin Pawar asked Dec 27, 2023

by Nitin Pawar

2.8k points

1 answer

44 votes

472k views

What is the ph of a 0.0520 M solution of HI

Dylan Russell asked Dec 27, 2023

by Dylan Russell

2.6k points

1 answer

38 votes

140k views

How fast is the wind have to blow to be classified as a hurricane?

Abhilash Kandwal asked Dec 27, 2023

by Abhilash Kandwal

2.4k points

1 answer

21 votes

108k views

Hello, I would like to check and see if the number of significant figures is correct with each calculation. Let me know if you have any questions.

Dotnetrocks asked Dec 27, 2023

by Dotnetrocks

2.5k points

1 answer

28 votes

386k views

Describe how intermolecular forces affect solvation.

Debie asked Dec 27, 2023

by Debie

2.6k points

1 answer

41 votes

287k views

How many molecules of co2 are in a 500. 0 ml container at 780 mm hg and 135°c? 8. 76 × 1021 molecules 9. 23 × 1021 molecules 5. 50 × 1021 molecules 2. 65 × 1022 molecules 2. 79 × 1022 molecules.

Alex Ushakov asked Dec 27, 2023

by Alex Ushakov

3.1k points

1 answer

13 votes

239k views

How many moles of H2O are in 35 grams of H2O?

Saransh Kataria asked Dec 27, 2023

by Saransh Kataria

2.3k points

1 answer

5 votes

150k views

PLEASE HELP ASAP HURRY!!!!: These photographs show two rocks that are about the same size. Which physical property do the two rocks share? A P E X A. Texture B. Color C. State D. Shininess

Thomas Guillerme asked Dec 27, 2023

by Thomas Guillerme

2.8k points

2 answers

42 votes

457k views

Determine the number of atoms contained in 4.2 moles of atomic bromine.

Sheree asked Dec 27, 2023

by Sheree

2.8k points

1 answer

41 votes

433k views

What is the different nobel gases that didnt have octet rule

Michal Kopec asked Dec 27, 2023

by Michal Kopec

2.8k points

2 answers

40 votes

505k views

Perform the following mathematical operation and report the answer to the appropriate number of significant figures. 5.4-4.21

Samadhan Medge asked Dec 27, 2023

by Samadhan Medge

2.6k points

1 answer

22 votes

343k views

Which of the following is NOT evidence for a chemical reaction? A. Color Change B. Gas Formation C. Melting D. Odor (Someone please help Ive been getting all these questions wrong and I’m sick I don’t

Welcor asked Dec 27, 2023

by Welcor

2.6k points

1 answer

10 votes

393k views

What is the most commonly preferred pH range for soil? Group of answer choices 7.5 to 9.0 6.2 to 7.0 3.2 to 4.5

James Adams asked Dec 27, 2023

by James Adams

3.3k points

1 answer

27 votes

47.8k views

Which best describesaluminum?A. It is an element.B. It is a mineral.C. It is an electron.

Jorn Rigter asked Dec 27, 2023

by Jorn Rigter

2.4k points

1 answer

9 votes

334k views

At 571.6 mmHg and 25 °C, a gas sample has a volume of 2,275 ml Determine the final pressure (in mmHg) at a volume of 1,255 mL and a temperature of 175°C? Show all your work

PeyloW asked Dec 27, 2023

by PeyloW

3.1k points

1 answer

28 votes

199k views

What happens to cabbage indicator when in clear soda. Why?

Pikanezi asked Dec 27, 2023

by Pikanezi

2.6k points

1 answer

17 votes

294k views

A 300K gas in a 3L container is transfered to a 10L container. What is the resulting temperature in K?

Shaun Lebron asked Dec 27, 2023

by Shaun Lebron

2.9k points

1 answer

16 votes

333k views

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