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Describe three changes in appearance which show that a chemical reaction is taking place?
Wiki User
∙ 12y ago
The colour, the temperature and formation of gas
Wiki User
∙ 12y ago
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What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
Does a chemical reaction change physical properties or chemical?
it changes chemical properties
What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
What is a process that changes one or more new substances?
I think the answer you're looking for is a "Chemical Reaction". For instance, combining Hydrochloric Acid (HCl) and Sodium Hydroxide (NaOH) will cause a Chemical Reaction resulting in salt water (NaCl + H20).
A protein that changes the rate of a chemical reaction?
An enzyme
Describe the two types of energy changes that occur in a chemical reaction?
An exothermic reaction and the change between potential and kinetic.
What evidence do you have that a chemical reaction took place?
changes in its appearance ie colour and state
What comes out of a reaction?
Chemical changes occur after a chemical reaction.
What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
What changes gives NO evidence that a chemical reaction has taken place?
Physical changes give no evidence that a chemical reaction has taken place, because no chemical reaction has taken place.
Does a chemical reaction cause chemical changes?
yes
What is changes of chemistry?
A chemical reaction is a chemical change.
What is the changes of matters?
This is a chemical reaction.
What is the purpose of writing a word equation in chemistry?
It is one way of representing a chemical reaction: it tells you what reacts and what is produced. Word equations are an efficient way to describe chemical changes, to help chemists recognize patterns, and to predict the products of a chemical reaction.
Does a chemical reaction change physical properties or chemical?
it changes chemical properties
What reaction is in antacids chemical or physical?
Chemical reactions are of course chemical changes.
What does a chemical reaction do to the atoms involved?
It changes them
