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Chemistry Questions and Answers (Q&A)

Barry Mclean, Sales Manager
Answered: Feb 28, 2019
C is the answer to this question. In order to solve this, you need to do some computations. You need to find the ratio of the mass of oxygen and the mass of the compound. You need to multiply...Read More

2 Answers

342 views
W. Wright, Biology student
Answered: Mar 07, 2019
The correct answer is option A
Bismuth (Bi) is a metallic element it has the strongest metallic character of all the option listed above. Bi is a poor metal it is similar to the arsenic and...Read More

2 Answers

289 views
Ejohns
Answered: Nov 18, 2019

Nitrogen 80% Oxegeon 20% that is my answer

2 Answers

201 views
T. ADAMS, Senior Executive
Answered: Jun 13, 2019
The correct answer to this question is 5. The formula for pH is pH = -log[H+]. pH is used in chemistry, to identify how acidic or basic a solution is. This pH would be acidic because 5 is less...Read More

2 Answers

217 views
John Smith
Answered: Feb 18, 2020
A + b ↔ ab -when dealing with pressure, you need to count the number of moles on both side of the equation. if there is an increase in pressure, the reaction favors the direction with less...Read More

2 Answers

230 views
John Smith
Answered: Feb 18, 2020
Sugar is soluble in water, but pepper is not.

2 Answers

210 views
H. Barnes, Unemployed
Answered: Apr 24, 2019
The correct answer to this question is B, it has 80 mol of atoms. Mol, also known as moles or Avogardro's number, are an amount unit used in chemistry. It is the mass of a substance, which would...Read More

2 Answers

230 views
Ken Wilson, Marketing Analyst
Answered: Jan 17, 2019
The answer is D. This is Rutherford’s experiment where he wanted to prove the existence of a nucleus in an atom. Ernest Rutherford along with his students Ernest Marsden and Hans Geiger...Read More

2 Answers

239 views
John Adney
Answered: Nov 02, 2017

The atmosphere because the phsphorus cycle only take splace with rocks, water, and soil.

2 Answers

227 views
A. Daniels, Professor
Answered: Mar 29, 2019
The best term to describe the pair of compounds shown in answer C. The same compound. A compound is made of contrasting elements in definite proportions. Some examples of these elements include...Read More

2 Answers

226 views
C. Marcus, Content Developer
Answered: Sep 25, 2018
Water is a solvent. It has numerous properties that set it apart from other solvents. The basic one is its property of surrounding different ions so that molecules break into separate charged...Read More

2 Answers

263 views
C. Block, English Professor
Answered: Mar 28, 2019
The correct answer to this question is B, square planar. While IF4- has an octahedral electron geometry, the molecular geometry of IF4- takes on a square planar shape. The cause of this is that...Read More

2 Answers

407 views
C. Block, English Professor
Answered: Mar 28, 2019
The correct answer to this question is D, potassium oxide. This is the correct name because Potassium (the K) is a metal with one valence electron while Oxygen (the O) is a nonmetal with two...Read More

2 Answers

245 views
J. Harty, Writer
Answered: Mar 28, 2019
The correct answer to this question is C, phosphorus pentachloride. The P stands for Phosphorus, while the Cl represents chloride. The 5 means that there are 5 Cl atoms bonded to the Phosphorus...Read More

2 Answers

342 views
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