

The scientist observed the reaction in the test tube.
A process in which substances interact to form new substances, often involving changes in energy.
The reaction produced a lot of heat.
We studied the chemical reaction carefully.
The reaction between the two elements was surprising.
chemical reaction
nuclear reaction
physical reaction
response
effect
transformation
Her reaction to the news was surprising.
A response to something that happens or is said.
His reaction was very calm.
The child's reaction made everyone laugh.
I didn't expect her reaction to be so strong.
emotional reaction
instant reaction
positive reaction
response
reply
answer
The reaction between vinegar and baking soda creates bubbles.
A chemical change that occurs when substances interact.
The reaction of metal with acid produces gas.
A chemical reaction can change color in a solution.
The reaction between heat and sugar creates caramel.
chemical reaction
exothermic reaction
reaction time
process
transformation
interaction