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Which of the following is not required in a chemical reaction?
An enzyme is not required in a chemical reaction. While reactants, energy, and a chemical reaction pathway are essential components of a chemical reaction, enzymes can speed up the reaction but are not always necessary for it to occur.
What substance is always made in a chemical reaction?
Reactants
What always happens to the atoms within molecules undergoing a chemical reaction?
In a chemical reaction sometimes old bonds are broken and new bonds are formed.
What is the difference between the predicted and actual yield in a chemical reaction?
The actual yield of a reaction product is always less than the yield from the chemical equation. This is because of error.
will a catalyst change the enthalpy of a reaction in a chemical reaction?
No, a catalyst will not change reaction enthalpy. If it does so, then it is NOT a catalyst but a reactant in stead!
Is boiling always a sign of a chemical reaction?
No, boiling is not always a sign of a chemical reaction.
What is always formed during a chemical reaction?
a chemical reaction always converts reactants to products. Products are always formed otherwise it's not considered a chemical reaction.
Chemical Reactions always involved changes in chemical?
Yes. The chemicals (reactants) that undergo a chemical reaction react with each other and make new chemicals called the products.
Is the enthalpy of formation always negative?
No, the enthalpy of formation can be positive, negative, or zero, depending on the specific chemical reaction and the substances involved.
What is always involved in physical or chemical change in matter?
Energy is always involved.
What changes are always involved in chemical reactions?
In a chemical reaction, changes in the arrangement of atoms and bonds occur as new substances are formed. Additionally, changes in energy levels, such as absorption or release of heat or light, are also common in chemical reactions. Moreover, changes in properties, such as color, odor, or state of matter, can often be observed as a result of a chemical reaction.
Is burning of fuel in a cutting torch a chemical reaction?
Yes, burning of fuel is always a chemical reaction.
Which of the following is not required in a chemical reaction?
An enzyme is not required in a chemical reaction. While reactants, energy, and a chemical reaction pathway are essential components of a chemical reaction, enzymes can speed up the reaction but are not always necessary for it to occur.
Will a metal always replace a metal?
A metal will not always replace another metal in a compound dissolved in water because metals differ in their reactivities .
What substance is always made in a chemical reaction?
Reactants
What is always conserved in a chemical reaction?
In a chemical reaction, the total mass and the number of atoms of each element are always conserved. This is known as the law of conservation of mass.
What part of the atom is involved in a chemical bond?
A standard chemical reaction always and only involves a change in the electron configuration of the atom (either the number of electrons or their energy configuration).If the nucleus is affected (either the number of protons or electrons), then it is designated as a nuclear reaction, and this is quite different.
