Answer:
Option A,+4
Explanation:
Oxidation state of any element is the sum of oxidation of all elements =0
Here we need to find oxidation no of carbon and consider oxidation no of carbon as X and oxidation number of oxygen is -2
Then X+2(-2)=0 (since 2 oxygen atoms are there in CO2 )
X-4=0
X=+4
Iron<span> is magnetic and the other two not, which means a magnet could be used to attract the </span>iron filings<span> out of the mixture, leaving the salt and </span>sand<span>. Salt is water soluble, while </span>sand<span> is not. This means the two can be mixed in water and stirred. The salt will dissolve and the </span>sand<span> will not.</span>
The outer is the correct answer
Answer: 14.01 moles
To solve this question, you need to determine the molecular mass of the Ba(OH)2. The molecular mass would be: 137.3 + 2(16+1)= 171.3g/mol.
If the total weight of Ba(OH)2 is 2400g and its molecular mass is 171.3g/mol, the number of moles would be: 2400g/ (171.3g/mol)=14.01 moles
Hey there!
<span>In this case, the equation of Clapeyron is used :
R = 0.082
Volume in liters :
100.0 mL / 1000 => 0.1 L
</span>
P * V = n * R * T
15.0 * 0.1 = 0.500 * 0.082 * T
1.5 = 0.041 * T
T = 1.5 / 0.041
T = 36.5 K
Answer C