B. One hydrogen atom , two oxygen atoms and one carbon atom -COOH. This is carboxylate group!
Use the equation Q = mCT.
Q is the amount of energy in joules.
m is the mass in grams.
C is the specific heat of water (4.184 J/g °C).
T is the change in temperature.
0.700 pints = 331.224 g of water
Q = (331.224 g)(4.184 J/g °C)(100° C - 30° C)
Q = 97,008.885 J
Divide by 1,000 to convert to kilojoules:
97.009 kJ
Answer:
[MgCl₂] = 0.036 M
Explanation:
Molarity are the moles of solute in 1L of solution.
For this case, our solution's volume is 2L
First of all, we convert the mass of solute (MgCl₂) to moles
6.92 g . 1mol / 95.2 g = 0.0727 moles
Now, we make a rule of three:
In 2L of solution we have 0.0727 moles of solute
Then, in 1L of solution we may have, 1L . 0.0727 mol / 2L = 0.036 M
Answer: Combustion reaction, and the answer would be 1,9,6,6.
Explanation:
