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What are clues that a chemical reaction has taken place A Formation of a gas B Constant temperature C Steam D Change in color?
Wiki User
∙ 11y ago
Hugh G. Rection
Wiki User
∙ 11y ago
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What is the chemical reaction of HF and water?
Not a chemical reaction, but the formation of a water solution of hydrofluoric acid.
What effects the rate constant of a reaction?
The temperature of the system
Signs of a chemical reaction?
One of the signs is effervescence ; gas produced. Another sign is change of colour Another sign is if the reaction vessel feels warm/hot/cold/cool to the touch.
An iron fence is left unpainted and it reacts with the oxygen in the air forming rust The formation of rust is an oxidation-reduction reaction but it is also an example of aan?
An iron fence is left unpainted, and it reacts with the oxygen in the air, forming rust. The formation of rust is an oxidation-reduction reaction, but it is also an example of a(n) synthesis reaction. In general, if temperature of a chemical reaction increases, the reaction rate increases, decreased remains the same cannot be predicted increases.
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.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
What is the 2nd observable characteristic of a chemical reaction?
There are many observable characteristics of a chemical reaction. They are: change in temperature formation of a precipitate change in color formation of a gas formation of a new odor disappearance of a solid
How an increase in temperature change the rate constant of a chemical reaction?
yes ofcourse!
What are the sings of chemical reactions?
The signs of a chemical reaction include change in temperature, change in color, formation of gas, formation of a precipitate, disappearance of a solid, formation of a new odor.
What can be evidence of a chemical reaction?
Generally, you know a chemical reaction has occured if there is a change in temperature, a change in color, a formation of a gas (bubbles), or any kind of flame.
What are Kp aND KC?
Kc is the equilibrium constant of a chemical reaction; Kp is the equilibrium constant of a chemical reaction at constant pressure.
Describe three changes in appearance which show that a chemical reaction is taking place?
The colour, the temperature and formation of gas
What clues can you use to identify a chemical change?
Characteristics of a chemical change can include a temperature change, a color change, the production of bubbles, the production of a precipitate, and a smell.
What are the four occurrences indicate a chemical reaction has occurred?
A chemical reaction can result in any or all of the following: - a change in temperature (up or down) - a change in color - a smell that wasn't there before - the formation of bubbles (indicating the production of a gas) - the formation of a precipitate
What are the five observations of chemistry that shows that a chemical reaction have taken place?
Formation of a precipitate; change in color; change in temperature; formation of a gas; emission of light.
What is the effect of pressure and concentration on Kc and Kp values?
Kc is the equilibrium constant of a chemical reaction related to concentrations. Kp is the equilibrium constant of a chemical reaction related to pressures. Generally, in normal conditions the effect of temperature is not so important.
What are the characteristics of a chemical reaction with example?
5characteristics of chemical reaction 1, evolution of gas 2,formation of precipitate 3,change in temperature 4,change in colour 5,change in state
