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What is a catalyst?
A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It lowers the activation energy required for the reaction to occur, thereby speeding up the reaction. Catalysts remain unchanged at the end of the reaction and can be used multiple times.
What is the name given to a substance that undergoes a chemical reaction?
a reactant
How is the thermal energy different from temperature?
Thermal energy is energy given off by a substance due to a reaction.
What are the spectator ions in the given balanced chemical equation CaCI2(aq) plus k2CO3(aq) CaCO3 (s) plus 2 KCI (aq)?
The spectator ions are the ions that do not participate in the chemical reaction and remain unchanged on both sides. In this reaction, the spectator ions are Ca2+ and CO32- from CaCl2 and K2CO3, since they appear unchanged in the final products.
Name given to a substance used to speed up chemical reaction?
dis is the eziest question evva.....enzyme
How do catalyst affect a chemical reaction?
Adding a catalyst will make the reaction happen faster because the catalyst makes the Activation Energy (the energy required for the reaction to take place) to lower. Meaning more molecules can acquire this lower number of energy. A chemical reaction that involves a catalyst is a special type. A catalyst, in a given chemical reaction, is something that is both an input *and* an output of the reaction equation. What that means, practically, is that a small amount of catalyst is enough to process any amount of the other inputs. (More catalyst means that a given amount will be processed faster.)
What is the scientific word for a gas given off during a chemical reaction?
A reaction that emmits heat is called an exothermic reaction .
Is density a fixed quantity or a variable quantity for a particular compound?
Density is a fixed quantity for a particular compound because it is calculated using the formula mass divided by volume, which gives a specific value for a given substance. This value will remain constant as long as the mass and volume of the substance remain unchanged.
What do you call the heat given to or given up from a substance?
The heat given to or given up from a substance is called heat transfer.
What would happen to the rate of a reaction with rate law rate k NO2H2 if NO were halved?
In the rate law given as rate = k[NO2][H2], the concentration of NO does not appear, so the rate of the reaction is independent of its concentration. Therefore, if the concentration of NO were halved, it would have no effect on the rate of the reaction. The reaction rate would remain unchanged as long as the concentrations of NO2 and H2 remain constant.
What type of reaction is S8 8O2 8SO2 energy?
The reaction of sulfur and oxygen to produce sulfur dioxide is called combination or synthesis.
How do you calculate equivalents in chemistry?
In chemistry, equivalents are calculated by dividing the given amount of a substance by its equivalent weight. The equivalent weight is the amount of a substance that can react with or replace one mole of hydrogen ions. This calculation helps in determining the amount of a substance needed for a chemical reaction.
