eelpitate
d. endothermic reaction
7
Matter exists in three forms-solid, liquid and gas. Ta
Change in colour is a kind of physical change.
6. Forming of a precipitate is a chemical change.
B. State whether the following statements are True or False. Correct the false statements.
1. A chemical reaction is the symbolic representation of a chemical equation.
In a single displacement reaction, one compound displaces another compound.
In a precipitation reaction, an insoluble substance is formed by mixing two solutions.
Answers
Answer:
Yes, matter exist in 3 form solid liquid and gas
change in colour is a kind of chemical change
yes, forming of precipitate is a chemical change
yes chemical reaction if the symbolic representation of chemical equation.
yes in a displacement reaction one compound displaces another compound from its solution.
yes in a precipitation reaction in foldable fold are formed by mixing two solutions
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I hope it is helpful for all of you
Answer:
Label a change as chemical or physical.
Label a change as chemical or physical.List evidence that can indicate a chemical change occurred.
Label a change as chemical or physical.List evidence that can indicate a chemical change occurred.Change is happening all around us all of the time. Just as chemists have classified elements and compounds, they have also classified types of changes. Changes are classified as either physical or chemical changes. Chemists learn a lot about the nature of matter by studying the changes that matter can undergo. Chemists make a distinction between two different types of changes that they study—physical changes and chemical changes.