A chemical reaction is the process by which a ___ takes place

Answers

Answer 1

Answer:

Answer:

A chemical reaction is the process by which a change takes place

Explanation:

A chemical reaction is a process by which one or more substances, called reactants, are transformed into one or more other substances with different properties, called products.

The bonds between the atoms that make up the reactants are broken. Then, the atoms rearrange themselves in another way, forming new bonds and giving rise to one or more different substances from the initial ones. So the atoms do not change, they remain the same, but it changes is the way they are linked together.

In short, chemical reactions are the process of arranging atoms and bonds when chemicals come into contact. The chemical properties change by altering the arrangement of the atoms in that substance.

So, a chemical reaction is the process by which a change takes place.

Answer 2

Answer: A chemical reaction is the process by which a CHANGE takes place (?)

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Which is the correct chemical formula for hydrogen gas?

Answers

Hydrogen gas is known as the chemical formula > H2
It consists of 2 hydrogen gases.

What types of atoms are shown in a skeletal model of an organic molecule?A. Atoms of every element except carbon
B. Atoms of every element except hydrogen
C. Atoms of every element
D. Atoms of every element except carbon and hydrogen

Answers

Answer:

Atoms of every element are shown in a skeletal model of an organic molecule.

Explanation:

Skeletal model of an organic molecule consists of various skeletal atoms that are used in making up of the molecule. Various conventions of hydrogen and carbon atoms are employed in it. The molecules bonding and certain representation of molecular geometry are shown in the structural formula.

Use of skeletal formula is ubiquitous in organic chemistry. Thus, in organic chemistry atoms of every element are shown in the skeletal model of an organic molecule

Why do less dense compounds make up Earths crust while the densest compounds make up the core

Answers

bc the more dense the stronger they are so they would be at the center. it is like you wouldn't put the heavier that the top you would put it at the bottom to hold the lighter up . so its the same thing you wouldn't put the lighter, less dense, in the middle and the heavier, more dense, on the outside bc it would just crumble.

Which two elements are least likely to react with each otherand form a compound? (1) A and G (2) D and G (3) J and M
(4) L and R

Answers

Answer:

1. A and G

Explanation:

A student wants to increase the maximum amount of sugar that can dissolve in water. She crushes the sugar and then stirs it into the water. Does this work? Explain why or why not.

Answers

Answer:

The amount of sugar that can dissolve in water increase .

Explanation:

Energy, which is the capacity to do work or produce heat, affects the rate at which a solute will dissolve.
Breaking up, crushing or grinding a sugar cube before adding it to water increases the sugar's surface area.
The more surface area a solute has, the faster it will dissolve because more particles of the sugar can interact with the water.
This means the finer the sugar particles, the faster it will dissolve.
The sugar in the middle of a sugar cube is protected from the water by the sugar in the outer layers of the cube; the water has to go through those outer layers first.
But if you crush the cube into a powder, all of the sugar is exposed to the water at once.

How are simple cations and anions named ?

Answers

Answer:

Explanation:

The cations are positively charged ions and the anions are negatively charged ions.

Simple cations and anions are named:

Cations that are formed from metal atoms have the same name as metal. If a metal can form cations of different charges, the positive charge is indicated by a Roman number in parentheses after the name of the metal. Cations formed from non-metal atoms have names that end in -ium.

The names of monoatomic anions, as well as some polyatomic anions that do not contain oxygen, are formed by replacing the termination of the element's name with –ide.

Simple cations are formally called by their element names with a suffixed Roman numeral in parentheses to indicate its charge. A simple anion has a name that is the original elemental name with the final syllable changed to -ide.

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