Answer:
Hydrogen
Explanation:
Hydrogen can never be central atom despite its low electronegativity
Answer:
open system
Coffee held in a cup is an open system because it can exchange matter water vapors and energy heat with the surroundings.
The answer is low frequency and long wavelength
Answer:
P.E for the 4kg bowling ball held 2.5 meters above head is 100j, while the other is 60j so the 4kg ball has more potential energy
•boiling and freezing point
•surface tension
•vapor pressure
• solid state
•liquid state
•gaseous state
