Chemical reactions
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Hard
Wayground Content
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7 questions
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1.
FLASHCARD QUESTION
Front
Why is boiling not a chemical reaction?
Back
Substances change but can be changed back again.
2.
FLASHCARD QUESTION
Front
Why is photosynthesis a chemical reaction?
Back
Substances change into a new substance.
3.
FLASHCARD QUESTION
Front
Iron reacts with sulfur to form iron sulfide. The product is:
Iron
,sulfur
,iron sulfide
Back
iron sulfide
4.
FLASHCARD QUESTION
Front
Why is the reaction of iron with sulfur to form iron sulfide a chemical reaction?
Back
A substance changes into a new substance.
5.
FLASHCARD QUESTION
Front
What is a reactant when cooking gas burns in oxygen to form carbon dioxide and water?
Back
oxygen
6.
FLASHCARD QUESTION
Front
What is a product when cooking gas burns in oxygen?
Back
water
7.
FLASHCARD QUESTION
Front
The metal iron rusts when it is exposed to air and water. The product in the chemical reaction is iron+oxygen+water---> rust
Back
rust
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