0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
When substances are different from the starting substances what occured?
This is a chemical reaction.
What happens in a can of spoiled food as gas is produced?
A chemical reaction of food decomposition occured.
Explain how a catalyst aids chemical reaction to take place and identify the subsequent chemical changes in the reaction?
The role of a catalyst is to quicken the chemical reaction . On reacting, it subsequently appears as a product in the next step of the reaction.
Explain what a chemical change is?
a chemical change is a change which brings about a change in the chemical properties of a substance which cannot be reversed through physical means like heating or cooling.
What caused the egg size to increase while putting it in vinegar?
a chemical reaction occured between the eggshell and the vinegar. That is what made it increase in size.
How does the chemical equation show that a chemical reaction has occured?
A compund
When substances are different from the starting substances what occured?
This is a chemical reaction.
Jorge added a solid material to a clear colorless liquidthe mixture began to bubblee xplain why jorge thought a chemical reaction occurreed?
if a person added a solid material to a colorless liquid and the mixture started to bubble if the person wrote in his notebook a chemical reaction occured explain why that person thought it was a chemical reaction?
What happens in a can of spoiled food as gas is produced?
A chemical reaction of food decomposition occured.
What can be evidence of a chemical reaction?
Generally, you know a chemical reaction has occured if there is a change in temperature, a change in color, a formation of a gas (bubbles), or any kind of flame.
What type of reaction has occured when two or more substances combine to form another substance?
This is called synthesis, a combination chemical reaction that changes the chemical bonds in the substances.
What is a purpose of a chemical equation?
A chemical equation lets humans explain a chemical reaction. When the same reaction occurs repeatedly, the equation serves to remind us of what happened in the reaction.
Which observation does not indicate that a chemical reaction has occured?
Change in total mass of substances.
Explain how a catalyst aids chemical reaction to take place and identify the subsequent chemical changes in the reaction?
The role of a catalyst is to quicken the chemical reaction . On reacting, it subsequently appears as a product in the next step of the reaction.
What is the purpose of a equated?
A chemical equation lets humans explain a chemical reaction. When the same reaction occurs repeatedly, the equation serves to remind us of what happened in the reaction.
What is the evidence that a chemical reaction occured in silver nitrate and potassium iodide?
A yellow precipitate of silver iodiode (AgI) is formed.
What is neutrailization explain with an example?
neutrallization is a chemical reaction of acid and alkali
