Answer:
HBr is a strong acid
Explanation:
KBr is a salt which makes a base . also KOH is a base
Answer:
H20is water andN20is nitrogen 4 oxide
A chemical change
Explanation:
In this reaction, a chemical change has occurred, here are some indicators of chemical changes from the reaction;
Chemical changes are changes in which new products are formed.
- Formation of bubbles and precipitates: these are new substances that indicates a chemical change. The bubbles and insoluble precipitate are good indicators of chemical change.
- A temperature change that is large; This is also typifies chemical changes. When temperature rises in reaction, a chemical change has occurred.
- The bubbles and precipitates cannot be combined to give the reactants. The reaction is irreversible.
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Chemical reaction, generally speaking. It's a vague definition, but it's easy to remember.
Answer:
the catalyst is the two gray dots