AnswersDrive25th November 2019
chemteam
16
What is the name of the chemicals on the right side of a chemical equation?
The reactants are on the left side of a chemical equation and the products are on the right side. However, you might ask, "On the left and right side of what?" On the left side are the reactants - hydrogen and oxygen.
Regarding this, what is a chemical reaction in chemistry?
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
What are the components of a chemical reaction?
There are two parts to a chemical reaction. The reactants are the elements or compounds on the left side of the arrow. The elements and compounds to the right of the arrow are the products.
1
What substance is formed after a chemical reaction?
The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.
2
What are the four different types of chemical equations?
Different Types of Chemical Reactions
- Synthesis / Direct Combustion. These chemical reactions occur where two or more substances react together to form just one product.
- Decomposition reaction.
- Single Displacement.
- Double Displacement.
3
What is the difference between the reactants and products of a chemical reaction?
Chemical reactions usually occur between substances that are referred to as chemical reactants. At the end of the chemical reaction, reactants are usually consumed and are transformed into a new substance. On the other hand, products are end points of chemical reactions, and they are produced at the end of the process.
4
What does a subscript in a chemical formula tell you to do?
Chemical formulas use letters and numbers to represent chemical species (i.e., compounds, ions). The letter or letters that represent an element are called its atomic symbol. The numbers appearing as subscripts in the chemical formula indicate the number of atoms of the element immediately before the subscript.
5
What is on the right side of a chemical equation?
The reactants are on the left side of a chemical equation and the products are on the right side. On the left side are the reactants - hydrogen and oxygen. We will ignore the two in front of the hydrogen for a moment. On the right side is the product - water.
6
What are the final or new substances in a chemical equation called?
A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
7
Why a chemical equation must be balanced?
Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Therefore, there must be the same number of atoms of each element on each side of a chemical equation.
8
Which chemical equation is balanced?
As a result, the chemical equation that shows the chemical reaction needs to be balanced. A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side.
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What does the chemical formula tell us?
The chemical formula can tell you the amount of each individual element that makes up that compound. Usually, they are derived by mass, so if you multiply the subscript number by the elemental mass of the number preceding, you can find how much of that element is in that compound.
10
What are the different types of chemical equations?
The major types of chemical reactions are:
- Combination or Synthesis Reaction. A combination or synthesis reaction is one, where a new product is synthesized by combination of two or three reactants.
- Decomposition Reaction.
- Displacement or Replacement Reaction.
- Acid Base Reactions.
- Combustion Reaction.
11
What is the name of the chemical reaction in which two or more substances combine to form another substance?
Ch.21. Chemical changes
| A | B |
|---|---|
| synthesis reaction | two of more substances combine to form another substance. |
| decomposition reaction | occurs when one substance breaks down, or decomposes, into two or more substances. |
| single-displacement reaction | when one element replaces another element in a compound |
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What is found on the right side of the arrow in a chemical reaction?
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.
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What are reactants and products in a chemical equation?
In the burning of natural gas, for example, methane (CH4) and oxygen (O2) are the reactants in the chemical reaction. are the substances formed by a chemical reaction. In the burning of natural gas, carbon dioxide (CO2) and water (H2O) are the products formed by the reaction.
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What is an insoluble compound that forms during a chemical reaction?
DHS PS CH 21 Review
| Question | Answer |
|---|---|
| What is an insoluble compound that forms during a chemical reaction? | Precipitate |
| A chemical reaction in which two or more substances combine to form another substance is called a _____. | Synthesis reaction |
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Why it is necessary to balance a chemical equation?
because, The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.
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How do you read a chemical formula?
Note that:
- The number of atoms of each element is written as a subscript;
- When only a single atom of an element is present, the subscript is omitted.
- In the case of organic (carbon-containing) compounds, it is customary to place the symbols of the elements C, H, (and if present,) O, N in this order in the formula.
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What are the different parts of a chemical equation?
A chemical equation is a short hand expression of a chemical reaction. There are two parts to a chemical equation. The reactants are the elements or compounds on the left side of the arrow (-->). The elements and compounds to the right of the arrow are the products.
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What are the substances to the right of the arrow in a chemical equation called?
Chemical Equation. The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products.