Answer:
The thumb alone is controlled by nine separate muscles; The hand has been used as a symbol of protection since ancient times; The human hand is different to the hands or paws of other animals, because it has fingers and a thumb that can work together. Each finger has 3 bones and the thumb has two bones
Explanation:
Answer:
Explanation:
Iron is the correct answer
Answer:
0.55 atm
Explanation:
First of all, we need to calculate the number of moles corresponding to 1.00 g of carbon dioxide. This is given by
![n=\frac{m}{M_m}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7Bm%7D%7BM_m%7D)
where
m = 1.00 g is the mass of the gas
Mm = 44.0 g/mol is the molar mass of the gas
Substituting,
![n=\frac{1.00 g}{44.0 g/mol}=0.0227 mol](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B1.00%20g%7D%7B44.0%20g%2Fmol%7D%3D0.0227%20mol)
Now we can find the pressure of the gas by using the ideal gas law:
![pV=nRT](https://tex.z-dn.net/?f=pV%3DnRT)
where
p is the gas pressure
V = 1.00 L is the volume
n = 0.0227 mol is the number of moles
R = 0.082 L/(atm K mol) is the gas constant
T = 25.0 C + 273 = 298 K is the temperature of the gas
Solving the formula for p, we find
![p=\frac{nRT}{V}=\frac{(0.0227 mol)(0.082 L/(atm K mol))(298 K)}{1.00 L}=0.55 atm](https://tex.z-dn.net/?f=p%3D%5Cfrac%7BnRT%7D%7BV%7D%3D%5Cfrac%7B%280.0227%20mol%29%280.082%20L%2F%28atm%20K%20mol%29%29%28298%20K%29%7D%7B1.00%20L%7D%3D0.55%20atm)
Answer:
D number of protons or atomic mass