MH₂ = 2×mH = 2×1g = 2 g/mol
Answer:
.biology and maybe physics
Answer:
C. Chemical Energy
Explanation:
The energy that stored in the substance or in compounds is called chemical energy which released when the substance reacts.
A substance is made up of atoms and molecules and chemical energy is present in those atoms or molecules. When a chemical reaction takes place, these energy released from atoms and molecules.
Chemical energy can be released in the form of thermal energy (heat) and mechanical energy (working ability).
Hence, the correct answer is "C. Chemical Energy".
Answer:
The answer is 3.87 J/g°C
Explanation:
Here is the equation we are going to use:
C= specfic heat in J/g°C
q = heat in joules (J)
m = mass in grams (g)
T = change in temperature
Here is what is given:
q = 849 J
m = 95.4 g
T = 48.0 - 25.0 = 23°C
Find:
Specific heat capacity in J/g
The first thing we are going to do is plug everything into the equation:
Then we are going to solve for C
Hope this helps!
Answer is: ethanol has the lowest vapor pressure because strongest intermolecular force (hydrogen
bond).
Hydrogen bond<span> is an </span>electrostatic<span> attraction between two polar groups that between </span>hydrogen<span> atom covalently bound to</span><span> atoms such as </span>nitrogen<span>, </span>oxygen, and fluorine. <span>Diethyl ether has weak intermolecular force.</span>
