Sagot :
CHEMICAL REACTIONS AND EQUATIONS
Chemical Reaction is a process in which one or more substances are changed new substance with different physical and chemic properties.
- Reactants are the substances that exist before a chemical reaction takes place.
- Product are the new substances that are formed during chemical changes.
"+" sign means react with
"—>" sign means yields or produces
EXAMPLE:
[tex] \small \tt \: Sodium \: metal + chlorine \: gas \rightarrow Sodium \: chloride[/tex]
[tex] \small \: \tt \: calcium \: + \: oxygen \rightarrow \: calcium \: oxide[/tex]
[tex] \small \: \tt \: magnesium \: + \: oxygen = magnesium \: oxide[/tex]
ADDITIONAL INFORMATION:
What is Chemistry?
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