CHEMISTRY MIDDLE SCHOOL

What is the correct name for the compound CoCl3?a) cobalt(I) chloride

B) cobalt(I) chlorate

C) cobalt(II) chlorate

D) cobalt(III) chloride

Answers

Answer 1

Answer:

Answer:

D) Cobalt (III) chloride.

Explanation:

It is an unstable compound in which the cobalt atoms have a formal charge of +3.

It could be stable but at very low temperatures, while at high temperatures it is found as a gas.

I hope this answer helps you.

Answer 2

Answer:

Cobalt(III) chloride, often known as cobaltic chloride, is an elusive and unstable cobalt and chlorine chemical with the formula CoCl₃. The cobalt atoms in this combination have a formal charge of +3. Here the correct option is D.

Due to its special characteristics, cobalt chloride (CoCl₃) is a chemical substance that is frequently utilized in scientific study. It is a crystalline solid that is pinkish-red and soluble in ethanol and water. Cobalt ions, which are necessary for the growth and development of both plants and animals, can be found in cobalt chloride.

Cobalt(III) chloride, often known as cobaltic chloride, is an elusive and brittle cobalt and chlorine chemical with the formula CoCl₃. The cobalt atoms in this combination have a formal charge of +3.

Thus the correct option is D.

To know more about Cobalt(III) chloride, visit;

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How many molecules of CBr4 are in 250 grams of CBr4

Answers

Answer:- $4.54*10^2^3$ molecules.

Solution:- The grams of tetrabromomethane are given and it asks to calculate the number of molecules.

It is a two step unit conversion problem. In the first step, grams are converted to moles on dividing the grams by molar mass.

In second step, the moles are converted to molecules on multiplying by Avogadro number.

Molar mass of $CBr_4$ = 12+4(79.9) = 331.6 g per mol

let's make the set up using dimensional analysis:

$250g((1mol)/(331.6g))((6.022*10^2^3molecules)/(1mol))$

= $4.54*10^2^3$ molecules

So, there will be $4.54*10^2^3$ molecules in 250 grams of $CBr_4$ .

DirectionsAnswer each question in the spaceQuestion1. Why does a neutral atom haveno overall charge?2. What determines the charge ofan ion?3. What can you infer about an ionthat has a positive charge?4. What symbol indicates an ionthat has a positive charge?5. What can you infer about an ionthat has a negative charge?6. What symbol indicates an ionthat has a negative charge?Answer

Answers

1. An atom has an equel number of protons and electrons. Since protons are positive and electrons are negative, they are balanced out and there is no charge.

Which of the following is most important when setting goals?

Answers

Devising a way to achieve the goals is the most important when setting goals.

Devising a way to achieve the goals

Explanation:

The fundamental objective for progress is Breaking down any long haul objectives into littler increasingly feasible objectives that help to advance accomplishment and achievement. While defining objectives, it makes its needs unmistakable for everybody associated with the association.

The reason for objective setting is to people what they have to concentrate on the most during the up and coming quarter, which at that point encourages them to have the option to organize their assignments.

Since it accomplishes an effective, engaged and definitive way by taking the correct activities in a lesser time period throughout everyday life.

What will happen to vinegar in a few days

Answers

from what I experienced I gets really loud with the smell but other than that nothing happens just the smell gets stronger

What kind of mistake has a scientist made if he accidentally spills a chemical that causes invalid conclusions? Is it a honest mistake or a biased mistake