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1. 
After a physical change the substance is?
A.
The same.
B.
A different one.
C.
I don't know🤓.
2. 
The mechanical property affect in the?
A.
Fragility, Elaticity, Malleability and Hardness of an object.
B.
Elasticity and Hardness of an object.
C.
i don't know🤓.
D.
Fragility, Hardness and Malleabilty of an object.
3. 
Which are the groups of physical properties?
A.
Mechanical, Electrical, Magnetic, Thermal and Optical.
B.
Mechanical, Electrical And Magnetic.
C.
I don't know🤓.
D.
Thermal and Magnetic.
4. 
Is this a physical or chemical change?
5. 
The optical property affect in the?
A.
Color and transparency of an object.
B.
color of an object.
C.
i don't know🤓.
D.
Transparency of an object.
6. 
The thermal property affect in the?
A.
Melting and boilling point of an object.
B.
Melting point an object.
C.
i don't know🤓.
D.
Boilling point of an object.
7. 
A intensive property depend on the amount of substance?
A.
Yes.
B.
No.
C.
I don't konw🤓.
D.
8. 
Is this a physical or chemical change?
9. 
A extensive property depend on the amount of substance
A.
Yes.
B.
No.
C.
I don't know🤓.
D.
10. 
When is a synthesis reaction?
A.
When you combine two or more reactans and form a product.
B.
when you combine only three reactans and form only one product.
C.
I don't know🤓.
D.
When you put two objects and agregate one in the mathematic equation by the minimun comon product(mcm).
11. 
When is a descomposition?
A.
When one reactan form two products.
B.
When three products convert in four products.
C.
I don't know🤓.
D.