- What is required for a reaction to occur?
- How do Catalysts speed up reactions?
- What two chemicals will explode when mixed?
- What are some slow chemical reactions?
- How can Reactions be slowed down?
- Which reaction is predicted as faster?
- What is the most powerful chemical reaction?
- What 5 ways can you speed up or slow down a chemical reaction?
- What is the coolest chemical reaction?
- What is fast reaction?
- What is an example of a slow reaction?
- How do you make a reaction faster?
- What is 1st order reaction?
- What increases reaction rate?
- What elements should not be mixed?
- What are the 4 ways to speed up a chemical reaction?
- How do you know if a reaction is slow or fast?
- What are 3 examples of a chemical reaction?
What is required for a reaction to occur?
In order for a chemical reaction to take place, the reactants must collide.
The collision between the molecules in a chemical reaction provides the kinetic energy needed to break the necessary bonds so that new bonds can be formed.
Energy is required to break a bond between atoms..
How do Catalysts speed up reactions?
A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.
What two chemicals will explode when mixed?
Here is some combination of two household chemicals that actually explode when mixed.Bleach And Ammonia. Both are cleaning equipment that exists in your everyday kitchen.Bleach and Rubbing Alcohol.Two Different Brand of Batteries.Potassium and water.Baking soda and vinegar.Mentos and Soda.
What are some slow chemical reactions?
The rusting of iron, the fermentation of sugar into alcohol, the chemical weathering of rocks (breaking down of rocks), the photosynthesis process in plants, coal formation are slow reactions.
How can Reactions be slowed down?
To slow down a reaction, you need to do the opposite. Factors that can affect rates of reactions include surface area, temperature, concentration, and the presence of catalysts and inhibitors. … Concentration – another way to increase the rate of a chemical reaction is to increase the concentration of the reactants.
Which reaction is predicted as faster?
Reactions in phases that easily mix, such as gases and liquids, occur much faster than reactions between solids. The extent of mixing of the reactants influences the frequency of molecular collisions – if reactants are more thoroughly mixed, the molecules will collide more often and thus react faster.
What is the most powerful chemical reaction?
The top 10 most dangerous chemical reactionsMaking Hydrogen fluoride. Hydrogen fluoride is a colorless gas which has a rather acrid smell. … Berthollet’s salt and red phosphorous. … Pharaoh’s Serpent or the Kraken. … Making phosphine. … Cesium and water. … Making nitrides. … Making hydrochloric acid. … Burning magnesium.More items…
What 5 ways can you speed up or slow down a chemical reaction?
There are five general properties that can affect the rate of a reaction:The concentration of the reactants. The more concentrated the faster the rate.Temperature. … Physical state of reactants. … The presence (and concentration/physical form) of a catalyst (or inhibitor). … Light.
What is the coolest chemical reaction?
Here is the list of 19 most stunning chemical reactions which prove that science is always cool.Sodium Polyacrylate and Water.Diethylzinc and Air.Cesium and Water.Calcium Gluconate.Nitrogen Triiodide.Hydrogen Peroxide and Potassium Iodide.
What is fast reaction?
A fast reaction is therefore best defined as one whose half-life is less than a few seconds (that is, of the same order as the human response time or the mixing time for reactants) at room temperature using conventional reactant concentrations (say 0.1 mol dm -3). … They invariably involve free-radical reactions.
What is an example of a slow reaction?
For example, the oxidative rusting of iron under Earth’s atmosphere is a slow reaction that can take many years, but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second. For most reactions, the rate decreases as the reaction proceeds.
How do you make a reaction faster?
Increasing the concentration of reactants in solution increases the rate of reaction as there are a greater number of particles available to react. This increases the frequency of collisions between particles. Increasing the temperature increases the kinetic energy of particles.
What is 1st order reaction?
Definition of first-order reaction : a chemical reaction in which the rate of reaction is directly proportional to the concentration of the reacting substance — compare order of a reaction.
What increases reaction rate?
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.
What elements should not be mixed?
Bleach and Ammonia = Toxic Chloramine Vapor. Bleach and ammonia are two common household cleaners that should never be mixed. … Bleach and rubbing alcohol = Toxic chloroform. … Bleach and vinegar = Toxic Chlorine Gas. … Vinegar and Peroxide = Paracetic Acid. … Peroxide and Henna Hair Dye = Hair Nightmare.
What are the 4 ways to speed up a chemical reaction?
The rate of reaction is sped up with: higher reactant concentration, higher temperature, higher pressure, greater surface area, catalysts and when the reactants are in the same phase.
How do you know if a reaction is slow or fast?
In a reaction with a slow initial step, the rate law will simply be determined by the stoichiometry of the reactants. In a rate law with a fast initial step, no intermediates can appear in the overall rate law.
What are 3 examples of a chemical reaction?
Common Chemical ChangesThe rusting of iron.Combustion (burning) of wood.The metabolism of food in the body.Mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH)Cooking an egg.Digesting sugar with the amylase in saliva.Mixing baking soda and vinegar to produce carbon dioxide gas.More items…•