Answer:
V = 11.21 L
Explanation:
Given data:
Volume of helium = ?
Number of moles = 0.500 mol
Temperature = 273.15 K
Pressure of gas = 1 atm
Solution:
Formula:
PV = nRT
R = general gas constant = 0.0821 atm.L/ mol.K
V = nRT/P
V = 0.500 mol × 0.0821 atm.L/ mol.K × 273.15 K / 1 atm
V = 11.21 L / 1
V = 11.21 L
Answer: the protons n neutrons
Explanation:
Answer: The quantity of heat required is 358.644 J.
Explanation:
Given: Specific heat capacity = 
Mass = 1.50 g


Formula used to calculate heat energy is as follows.

where,
q = heat energy
m = mass
C = specific heat capacity
= initial temperature
= final temperature
Substitute the values into above formula as follows.

Thus, we can conclude that quantity of heat required is 358.644 J.
Answer:
78.2°C
Explanation:
take away by the illuminus of the civilization so the radiation can oxidize the whole number of its element
Our blood have a pH around the 7.0, when we hold the breath our cells still breathing, and the release

, this compound react with water (hydrolysis).

This compound formed by this reaction is acid, carbonic acid.
Them the pH will get lower them normal, and our buld send an action to our body, and this reaction will be the <span>breathing.</span>