What is the correct molar mass for the compound CaBr3

Answers

Answer 1
Answer: CaBr₃ = 40 + 80 * 3 = 280 g/mol

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The valence of aluminum is +3, and the valence of chlorine is –1. The formula for aluminum chloride iscorrectly written as
A. ClAl3.
B. Cl3Al.
C. AlCl3.
D. Al3Cl.

Answers

The correct option is C.i.e. AlCl3Given:The valence of aluminum is +3, and the valence of chlorine is –1. Thus, 3 chlorine atoms each of (-1 charge )combine to make the charge balance because of Al (3+). Thus, 1 atom of Aluminum (Al) binds with three atoms of Chlorine (Cl).Thus, the net foromula becomes AlCl3

AICI3

which is choice c.


Aluminium chloride

Chemical compound

DescriptionAluminium chloride is the main compound of aluminium and chlorine. It is white, but samples are often contaminated with iron(III) chloride, giving it a yellow color. The solid has a low melting and boiling point. Wikipedia

IUPAC ID: aluminium chloride

Molar mass: 133.34 g/mol

Soluble in: Water

Related Lewis acids: Iron(III) chloride; Boron trifluoride

Heat capacity (C): 91.1 J/mol·K

Other names: aluminium(III) chloride; aluminum trichloride

An electric current is conducted by what?

Answers

An electric current is conduced by the solution of NaCI


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The three-dimensional structure of macromolecules is formed and maintained primarily through noncovalent interactions. Which one of the following is not considered a noncovalent interaction?A) carbon-carbon bondsB) hydrogen bondsC) hydrophobic interactionsD) ionic interactions

Answers

Answer:

The correct answer is A) carbon-carbon bonds.

Explanation:

The noncovalent interactions can generally be classified into electrostatic, π interactions, Van der Waals forces, and hydrophobic interactions. They do not share electrons, but present more dispersed variations of electromagnetic interactions between molecules or within the same molecule.

In a carbon-carbon bond, there is a covalent bond between two atoms in an organic compound. The most common form is the simple bond, which is composed of two electrons, one belonging to each of the two atoms. The simple carbon-carbon bond is a sigma bond.

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Answer:

The correct option is A

Explanation:

Non-covalent interactions, from the name, means interactions that do not involve covalent interaction. Covalent interaction involves the sharing of electrons between two atoms. The bond between two carbons in organic compounds is covalent bond. The covalent interaction in itself does not permit for three-dimensional structure. Examples of noncovalent interaction include hydrogen bonds, ionic interactions, van der waals interactions and hydrogen bonds

You find that the unknown powder contains the illegal drug cocaine. If someone where to ask you to determine the purity of the substance, what would they mean? Why is purity important in crime investigations?

Answers

The substance is not composed entirely of cocaine, it is mixed with other materials. The purity refers to what percentage of the powder is cocaine, and what percentage is other materials.
Purity can be important in crime investigations to find out the samples value, and to pair it with previously found samples of equal purity to deduce that they came from the same source.

Answer:

If some would ask me to determine the purity of an unknown powder that contains illegal drugs like cocaine, they would probably be wanting to remove other substances that are added like baking soda, and the reason this is so important is that sometimes the ingredients they get to mix with have an effect on the test and may miss lid the results.

Explanation:

Describe the sequence of events in the formation of an evaporite

Answers

- Water enter from creeks, bringing whatever material it has dissolved in its way

- The materials is being build up throughout time in the lake or sea, causing its salinity to increase

- when this saline solution is evaporated, the ions in the water precipitate, forming an evaporite

Sediments are buried, pressure increases, volume of sediment decreases, sandstone compresses, saline solution becomes evaporated,and thenforms an evaporite.

What is an evaporite?

An evaporite can be defined as a mineral deposit containing saline substances that are produced due to the evaporation of a water body.

In this context, the sequence of events in the formation of an evaporite are listed as follows:

  1. Sediments are buried.
  2. Increase pressure pushes the grains closer together.
  3. Decrease in the volume of sediment, which cause fluids between the grains to be squeezed out.
  4. Sandstone are left tightly compressed together.
  5. The saline solution becomes evaporated, and then the ions contained in the water precipitates, forming an evaporite.

Read more on evaporite here: brainly.com/question/506772

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What is the IUPAC name for the compound FeS?

Answers

The IUPAC name for the compound FeS is Iron(II)Sulfide. IUPAC stands for  International Union of Pure and Applied Chemistry. This is an organization that establishes official names of chemical elements and compounds. Hope this is the answer that you are looking for. 

Answer:

The correct answer is “Iron(II) sulfide.”

Explanation:

It is pretty obvious there is presented an iconic compound made by iron written as Fe and a sulfur, S that is a nonmental instead. A metal as iron will form a cation and a nonmetal an anion. The sulfur will need 2 electrons from iron in order to complete its octet and in this way the iron equilibrates the sulfur. It can give it 2, so that is why we write it in Roman numbers, and form the formula above.