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Chemical Equations

A chemical equation is defined as the short-hand representation of a true chemical reaction with the help of symbols and formula. In this category, there are questions relating chemical equations, symbols and formula.

1,996 Questions

What belongs in the blank space of the following chemical equation for the burning of fossil fuels fossil fuel plus oxygen gas plus water plus heat?

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Asked by Wiki User

Carbon dioxide and water vapor belong in the blank space of the chemical equation for the burning of fossil fuels, as the reaction involves the combustion of hydrocarbons in fossil fuels in the presence of oxygen to produce carbon dioxide and water vapor, along with heat energy.

What key feature must a chemical equation have for it to be classified as a combustion reaction?

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Asked by Wiki User

A key feature of a combustion reaction is the reaction between a substance and oxygen to produce heat and light as products. In a combustion reaction, oxygen is typically a reactant, and the products formed are usually carbon dioxide and water.

What is the balanced chemical equation for the combustion of methylcyclononane?

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Asked by Wiki User

The balanced chemical equation for the combustion of methylcyclooctane is:

C9H18 + 12.5O2 -> 9CO2 + 9H2O

What information in a balanced chemical equation shows how many moles of a reactant are involed in the reaction?

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Asked by Wiki User

The coefficients in a balanced chemical equation indicate the mole ratio between reactants and products. This allows us to determine the number of moles of each substance that participate in the reaction based on the stoichiometry of the reaction.

What does a balanced chemical equation convey to a chemist?

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Asked by Wiki User

A balanced chemical equation shows the identities and relative quantities of reactants and products involved in a chemical reaction. It indicates the stoichiometry of the reaction, meaning the molar ratio of the substances involved. This information is crucial for predicting the outcome of the reaction and for calculating the amounts of substances needed or produced.

Is a chemical equation balanced when each sum of molecules is the same?

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Asked by Wiki User

No, a chemical equation is balanced when the number of each type of atom is the same on both sides of the equation. This means that the total mass and charge is conserved in a balanced chemical equation.

What is the chemical equation for burning lead?

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Asked by Wiki User

The chemical equation for burning lead is 2Pb + O2 -> 2PbO. Lead reacts with oxygen to form lead oxide.

What type of chemical reaction takes place when a magnesium wire is burnt in air and write chemical equation for the same?

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Asked by Wiki User

When magnesium oxide is burnt in air, an oxidation of the magnesium and reduction of some of the oxygen in the air occurs according to the equation:

2 Mg + O2 -> 2 MgO.

What suggestions would you provide to make chemical equation more information?

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Asked by Wiki User

To make a chemical equation more informative, you can include state symbols to indicate the physical state of each substance (s for solid, l for liquid, g for gas, and aq for aqueous solution). You can also include coefficient values to show the stoichiometry of the reaction, and write the equation in a balanced form to illustrate the conservation of mass. Additionally, including reaction conditions such as temperature, pressure, and catalyst used can provide more context.

What is too the right of the arrow in a chemical equation?

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Asked by Wiki User

The products of a chemical reaction are typically written to the right of the arrow in a chemical equation. This section represents the substances that are formed as a result of the reaction taking place.

What is meant by skeletal chemical equation?

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Asked by Wiki User

A skeletal chemical equation is a simplified version of a chemical equation that omits details about the physical state of the reactants and products, as well as the coefficients of the compounds involved. It focuses on showing only the essential elements and their ratios in the reaction.

What is the chemical equation of ocean acidification?

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Asked by Wiki User

Ocean acidification is caused by the absorption of carbon dioxide by seawater, leading to the formation of carbonic acid. The chemical equation for this process is: CO2 + H2O -> H2CO3 This reaction increases the concentration of hydrogen ions in the water, lowering the pH and making the ocean more acidic.

What is true about all chemical equations?

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Asked by Wiki User

All chemical equations must satisfy the law of conservation of mass, meaning the number of atoms of each element must be the same on both sides of the equation. Additionally, the equation must represent a balanced reaction, with equal numbers of each type of atom on both sides.

Why mole concept is used in balancing chemical equation?

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Asked by Wiki User

The mole concept is used in balancing chemical equations because it helps to ensure that there is conservation of mass in the reaction. By balancing the number of each type of atom on both sides of the equation using moles as a unit of measure, we can determine the correct stoichiometry of the reaction. This allows us to accurately predict the amount of reactants needed and products formed in a chemical reaction.

What does a double arrow mean when it is used between the reactants and the products in a chemical equation?

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Asked by Wiki User

A double arrow in a chemical equation represents a reversible reaction, meaning that the reaction can occur in both the forward and reverse directions. It signifies that the reaction can reach equilibrium where the rate of the forward reaction equals the rate of the reverse reaction.

Are moles conserved in a balanced chemical equations?

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Asked by Wiki User

Yes, moles are conserved in a balanced chemical equation according to the law of conservation of mass. This means that the total number of moles of each element involved in a chemical reaction remains constant before and after the reaction.

How can you recognize the product in a chemical equation?

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Asked by Wiki User

The product in a chemical equation is located on the right side of the arrow. It is what is formed as a result of the reaction between the reactants on the left side of the arrow. Additionally, products are typically written in a different format or style in the chemical equation compared to the reactants.

Does the chemical equation of ATP release exergonic exothermic or absorb energy endergonic endothermic?

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Asked by Wiki User

The breakdown of ATP into ADP and inorganic phosphate releases energy, making it an exergonic and exothermic reaction. This energy is used by cells for various cellular processes.

What is the balanced chemical equation for lithium plus nitrogen lithium nitride?

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Asked by Horndh

It is a redox (oxidation-reduction) reaction. and sodium is higher on the reduction series, so it wants to be solid more. the reaction will be:

Li(s)+NaCl(aq) ---> Na(s)+LiCl(aq)

It could also be written as an ionic equation:

Li(s)+Na+(aq)+Li-(aq) ---> Na(s)+Li+(aq)+Cl-(aq)

Are reactants listed on the left or right of a chemical equation?

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Asked by Wiki User

This statement would be...false.

The reactants are located on the left, and the products are located on the right.

This is desmond thaxs so much it helped =)

What is chemical equation for FeS?

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Asked by Wiki User

The chemical equation for iron (II) sulfide, FeS, is: Fe + S -> FeS.

What law of chemical change is obeyed when a chemical equation is balanced and explain?

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Asked by Wiki User

The law of conservation of mass is obeyed when a chemical equation is balanced. This law states that the total mass of the reactants must equal the total mass of the products in a chemical reaction. Balancing an equation ensures that the number of atoms of each element is the same on both sides of the equation, thus conserving mass.

Is it true that subscripts can be changed in order to balance a chemical equation?

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Asked by Wiki User

No, subscripts cannot be changed in a chemical formula to balance a chemical equation. Balancing a chemical equation involves adjusting the coefficients in front of the chemical formulas to ensure that the number of each type of atom is the same on both sides of the equation. Changing subscripts would alter the chemical identities of the substances involved.

What do the formula of a chemical equation tell you?

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Asked by Wiki User

The formula of a chemical equation tells you the type and number of atoms or molecules involved in a chemical reaction. It helps to balance the equation to ensure that mass is conserved and the reaction follows the law of conservation of mass.