Answer:
It is false
Explanation:
ph value below 7 are acidic, and ph values above 7 are alkaline (basic)
The state of water is liquid
Answer:

Explanation:
We can use the Ideal Gas Law — pV = nRT
Data:
V = 15.0 L
n = 0.55 mol
T = 300 K
Calculation:

Answer:
Explanation:
ratio of moles of N and O in molecule =
N / O = 2.17 / 4.35
1/2
empirical formula = NO₂