science Flashcards
learn about science
1
Q
What is Physical Change?
A
Change from one form to another without change in it’s chemical identity
2
Q
What is Chemical Change?
A
Change that is accompanied with the change in it’s chemical identity
3
Q
What is a reactant?
A
the thing you start with
4
Q
What is a product?
A
the thing you end up with
5
Q
What is The Conservation of Mass?
A
matter cannot be created or destroyed
6
Q
What is a Decomposition reaction?
A
a decomposition reaction is a type of chemical reaction in which a compound breaks down into two or more substances
7
Q
What does HCL stand for?
A
Hydrochloric acid
8
Q
What does H2SO4 stand for?
A
Sulphuric acid
9
Q
What does HNO3 stand for?
A
Nitric acid
10
Q
What does O2 stand for?
A
Oxygen
11
Q
What does C2 stand for?
A
Diatomic carbon
12
Q
What does H2 stand for?
A
Hydrogen gas
13
Q
What does N2 stand for?
A
Nitrogen
