Answer:
The correct option is;
a) The resulting mixture was cloudy
Explanation:
Here we have the initial color as
1. Colorless and
2. Dark blue
We analyze each of the results as follows
a) The resulting mixture was cloudy
A cloudy mixture forming when the two liquids are mixed is most likely due to the formation of a suspension from a new substance That is a new compound is formed
b) The total volume of the mixture was equal to the sum of the initial volumes.
Here since there is no change in the physical properties as the volume of the mixture is the sum of the volumes of the constituent then there is unlikely to be a chemical change
c) The resulting liquid was light blue
Here, the observation is more of a physical change
d) The liquids formed two separate layers in the beaker.
This is an indication that there was no mixing of the liquids hence no reaction or chemical change.
Answer:
Q = 16163.88 Joules
Explanation:
Given the following data;
Initial temperature, T1 = -25°C
Final temperature, T2 = 150°C
Mass = 45.5 g
Specific heat capacity of ice = 2.03 J/g°C
To find the quantity of heat required;
Heat capacity is given by the formula;
Where;
Q represents the heat capacity or quantity of heat.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
dt = T2 - T1
dt = 150 - (-25)
dt = 150 + 25
dt = 175°C
Substituting into the formula, we have;
Q = 16163.88 Joules
Answer: 88g
Explanation:
11 moles H2 = 11 mole H2O = 5.5 moles O2 = 16*5.5 g
