Plant cells vacuole is called the central vacuole
Answer:
A= Compound
B= Mixture
C= Element
D= Element
Explanation:
A has two different types of atoms chemically together as a compound
B is made up of two or more different atoms not chemically joined together
C has one type of atom
D has one type of molecule. They're the same and could be a diatomic element like hydrogen
Sorry if this is confusing or wrong
Answer: four valence
Explanation: Atomic carbon has six electrons: two inner shell (core) electrons in the 1s orbital, and four valence (outer most shell) electrons in the 2s and 2p orbitals
Answer:
5. higher
6. shifted down
7. closer together
8. increase its wave length
Explanation:
The answer to question 7 is b