Sybau
What does an exothermic reaction do with heat?
It gives off heat.
Name one endothermic reaction you know
Photosynthesis, melting ice, cooking food, etc
What happens to the energy of the surroundings during an exothermic reaction?
The surroundings get hotter (energy is released into them
If a reaction takes in 200 kJ of heat, is it exothermic or endothermic?
Endothermic
How many students are there in 7A?
What does an endothermic reaction do with heat?
It takes in heat
Which kind of reaction feels cold: endothermic or exothermic?
Endothermic.
What happens to the energy of the system during an endothermic reaction
The system takes in energy from the surroundings.
If a reaction gives off 500 kJ of heat, is it exothermic or endothermic?
Exothermic
Is water liquid?
Yes
In an exothermic reaction, does it get hotter or colder?
It gets hotter
Which kind of reaction feels warm: endothermic or exothermic?
Exothermic
In chemical equations, is energy written as a product or reactant in an exothermic reaction?
It is written as a product.
If you heat up an exothermic reaction, will it go faster or slower?
Faster
What kind of tree is a tree?
Its a tree!
In an endothermic reaction, does it feel warmer or cooler?
It feels cooler
Is a campfire exothermic or endothermic
Exothermic
In chemical equations, is energy written as a product or reactant in an endothermic reaction
It is written as a reactant
How many bones are there in a human body
206
How many points is this question?
400
Give one example of an exothermic reaction
Burning wood, fireworks, a campfire, etc
Is melting ice exothermic or endothermic?
Endothermic
What does a negative ∆T (delta temperature) mean in terms of energy change
It means the reaction releases energy (it is exothermic)
When you snap a cold pack and it gets cold, is it exothermic or endothermic? Why?
Endothermic — it absorbs heat, making it feel cold
If 3x−y=12, what is the value of 8^x/2^y
2^12