<u>Answer:</u> The amount of heat gained by the water is 8368 J
<u>Explanation:</u>
To calculate the amount of heat absorbed, we use the equation:
where,
q = amount of heat absorbed = ?
m = mass of water = 1000 g
C = specific heat capacity of water = 4.184 J/g°C
= change in temperature = 2°C
Putting all the values in above equation, we get:
Hence, the amount of heat gained by the water is 8368 J
Answer:4
Explanation:To balance the equation you need to make the number of each element equivalent in both sides.
To start add a 2 in front of the MnO2 which balances the Mn.
Then balance the oxygen by adding a 4 in front of H20.
The H then needs a 8 as it’s coefficient.
At the beginning there was just
1 mole of hydrogen and
1 mole of iodin.
The reaction goes:
One mole of hydrogen goes with one mole of iodin, creating
2 moles of product.
If 0.8 of hydrogen remaind, it means that
1-0.8=0.2 reacted.
So:
1 mole H2 react with 1 mole I2 creating 2 moles of products.
So 0.2 of hydrogen reacted with 0.2 mole of iodin creating 0.4 moles.