5681595
Description
Flashcards by husien jama, updated more than 1 year ago
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Created by husien jama
over 8 years ago
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| Question | Answer |
| What are reactants? | Reactants are substances you started with before the chemical reaction |
| what are products? | substances that are formed by the chemical reaction |
| What is endothermic? | they are reactions that need energy to proceed and they get their energy from their surroundings |
| give an example for an endothermic reaction? | when you apply a cold pack when your injured |
| what are the four steps you need to follow to write a chemical reaction? | identify the reactants and products , write a word equation , write an unbalanced formula equation and balance the equation |
| what is the law of conservation of MASS? | THE FUNDAMENTAL principle of chemistry |
| what is photosynthesis? | the reactions that plants use to form sugar |
| what is the sugar that plants form called? | GLUCOSE |
| WHAT IS THE CHEMICAL FORMULA for glucose ? | C6H1206 |
| WHAT DOES CARBON DIOXIDE + WATER MAKE ? | GLUCOSE +OXYGEN |
| when does COMBUSTION occur ? | whenever something reacts with oxygen gas |
| what is combustion reaction? | examples of exothermic reaction |
| what is corrosion ? | the chemical reaction that breaks metals down to form other compounds. |
| who is brother oussama magar? | the funniest teacher in the world. |
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