1: Matter Flashcards
1
Q
What is matter?
A
anything that has mass and takes up space; made of atoms
2
Q
What are atoms?
A
come in 118 elements (H, C, N, O)
3
Q
What is a molecule?
A
2 or more atoms of the same or different elements combined
4
Q
What are examples of molecules?
A
- water (H2O)
- oxygen molecule (O2)
- carbon dioxide (CO2)
5
Q
What are organic molecules?
A
contains the element Carbon and Hydrogen
6
Q
What are examples of organic molecules?
A
lipids, proteins, DNA, sugars, aspirin, ethanol
7
Q
What is the law of conservation of matter?
A
MATTER CANT BE CREATED OR DESTROYED
- In all physical and chemical changes, we can’t create nor destroy any of the atoms involved, they can only be rearranged into different patterns or combinations
