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Chemistry Questions and Answers (Q&A)

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

1 Answer

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

1 Answer

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

1 Answer

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

1 Answer

J. Harty, Writer
Answered: Mar 28, 2019
The correct answer to this question is B, Iron(II) oxide. Iron(II) oxide is also know as ferrous oxide following the older system of naming conventons. It is an inorganic compound. Since Oxygen...Read More

1 Answer

L. Brett, Sales Manager
Answered: Mar 28, 2019
The correct answer to this question is B. Composition stoichiometry refers to the atomic makeup of a molecule, the quantitative relationships among elements in compounds, and is the study of the...Read More

1 Answer

C. Bernthal, Teacher
Answered: Mar 07, 2019
To create a balanced equation when aluminium reacts with copper (II) sulphate, provide the correct coefficient for each compound. Be sure to count all atoms on each side of the chemical...Read More

1 Answer

L. Brett, Sales Manager
Answered: Mar 28, 2019
The correct answer to this question is D; the empirical formula for a compound that is 43.6% phosphorus and 56.4% oxygen is P2O5. In the formula, the P stands for phosphorus and the O standards...Read More

1 Answer

R. Jones, Student
Answered: May 17, 2019
The correct answer to this question is B, 43.2 g. The mass of the glucose in one mole is calculated and then compared. First, one must identify that there are : 12 H = 1.0079g x 12 =12.0948 g , 6...Read More

1 Answer

M. Porter, Senior Executive
Answered: Mar 28, 2019
The correct answer to this question is A. The nucleus of the atom was discovered by Ernest Rutherford in the year of 1911. Born in New Zealand, Rutherford is a British physicist considered as the...Read More

1 Answer

M. Porter, Senior Executive
Answered: Mar 28, 2019
The correct answer to this question is C. Density is a physical property due the ratio between a substance's mass and volume. A physical property is something that does not change the chemical...Read More

1 Answer

Danielbueno
Answered: Aug 07, 2018

I agree!! Can; water, can be separated by electorolysis :)

1 Answer

M. Parker, Internet Researcher
Answered: Dec 20, 2018
The opposition that a substance offers due to the flow of electric current is called resistance. Resistivity is the electrical opposition per unit length, area, or volume of an element....Read More

1 Answer

John Adney
Answered: May 16, 2017
Carbon dioxide is a compound because it is two elements chemically combined. when there are number it most likely is a compound.

1 Answer

Matz Lewis Clark, College student
Answered: Feb 28, 2019
The answer to this is letter C. You need to solve in order to get this answer. There are only two steps so you do not have to make a lot of effort to solve. The first step is to divide your grams...Read More

1 Answer

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