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A chemical reaction is the change that takes place when two or more substances?
Wiki User
∙ 13y ago
interact
Wiki User
∙ 13y ago
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Explain how you can tell whether a chemical reaction has taken place?
A chemical change or reaction happens if new substances are formed. there may be a change in temperature so the reaction mixture may heat up or cool down. it also might change colour, give off bubbles of gas or fumes and you also might hear fizzing or a gas might explode.
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.
What shows changes that take place during a chemical reaction?
A chemical equation
What are clues that a chemical reaction has taken place A Formation of a gas B Constant temperature C Steam D Change in color?
Hugh G. Rection
Where the chemical reaction take place in a cell?
whan a sperm cell enter the egg cell and make a baby thats the huge chemical reaction
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
The change that takes place when two or more substances interact to form new substances is called a reaction.?
two
The change that takes place when two or more substances to form new substances is called a chemical reaction.?
two
Is the change that takes place when two or more substances interact to form new substances.?
A chemical reaction is the change that takes place when different substances react with one another to form new substances. The substances that react in a chemical reaction are called the reactants and the new substances formed are called the products.
A ______ reaction is the change that takes place when two or more substances interact to form new substances?
Chemical (Apex)
The change that takes place when two or more interact to form new substances is called a chemical reaction.?
substances
The that takes place when two or more substances interact to form new substances is called a chemical reaction.?
Change
What do you call the substances before a chemical reaction takes place?
The substances before a chemical reaction takes place are called reactants.
The change that takes place when two or more substances what to form new substances is called a chemical reaction?
(Apex) interact
What are the substances that react in chemical reaction called?
1. Initial substances in a chemical reaction are called reactants.2. The obtained final substances are called products or resulting substances.
Is reaction with acid a physical or chemical property?
A physical reaction is when no new substances are formed, there is a change of state eg ice melting to a liquid. A chemical change is when the reaction forms a new substance. eg gas bubbles. An acid reaction can be both. You need to look at the reaction taking place, look for change of state (physical) or any colour change or gas bubbles (chemical).
If you are trying to decide whether a chemical reaction does or does not take place when two substances are mixed what kind of evidence will you look for?
change of state change of colour fizzing/gas bubbles
