Answer:
Phase changes that require a loss in energy are condensation and freezing.
Explanation:
Answer:
1088.89 Pa
Explanation:
According to the Newton's second law of motion:-
Mass = 50.0 kg
Acceleration = g = 9.81 m/s²
So,
Force = 490 N
Area of the base =
=
m² = 0.45 m²
<u>Pressure = Force/Area =
= 1088.89 Pa</u>
Answer:
12 oxygen atoms are in 4 molecules of HNO3?
Explanation:
the amounts of atoms of all the component in HNO3, which are 1 atom of Hydrogen, 1 atom of Nitrogen and 3 atoms of Oxygen.
Answer:
B
Explanation:
sometimes it can change chemically but not all the time.
0.02 mol NaCl
Explanation:
(0.2M NaCl)×(0.10 L) = 0.02 mol NaCl