Conservation of Mass
The definition
What is matter cannot be created or destroyed but just rearranged?
Melting an ice cube is this type of change
What is physical?
When a reaction absorbs heat we say it is
What is endothermic?
Formation of Na and Cl
Sodium Chloride
This type of reaction only has one product
What is synthesis?
You want to make some pink frosting for your cookies. The type of change occurring
What is physical?
When a system gives off heat we say it is...
What is exothermic?
Is Au2O3 a ionic compound or covalent compound
Ionic
The type of reaction represented here
Zn + 2HCl -> ZnCl2 + H2
What is single replacement?
You decide to cook some crepes for breakfast. The type of change occurring
What is chemcal?
A student is mixing two chemicals in a beaker. The beaker feels cold to the touch. The type of reaction occuring.
What is endothermic?
What should be the product when combine Ca and Cl
CaCl2
This reaction only ever has CO2 and H2O as products
What is combustion?
At the school bonfire we roast marshmallows. The type of change this is...
What is chemical?
You break a hot pack to activate it. The reason it feels hot is because it is this type of reaction
What is exothermic?
Tell me the Bohr's model of Phosphorus? 15
(enenergy level)
2 8 5
This reaction is the reverse of synthesis
What is decomposition?
A teacher is burning a sweet smelling candle..the type of change occurring...
What is both chemical and physical?
A student is studying the reaction of fuel in a car...they correctly identify it as a
What is exothermic process?
What is the name of MnO4 without looking for it on your sheet
permanganate