Answer: Mass is the amount of matter in a substance. Volume is the amount of space matter takes up. Matter has both physical and chemical properties.
Explanation:Y w
Burning less fossil fuels and riding bikes or walking instead of cars.
Explanation:
The percent yield of the reaction is equal to actual yield / theoretical yield * 100%. So for this question, the percent yield is 10.3/12.9*100%=79.8%. So the answer is c.
The answer to your question is homogeneous solutions , 6ut i may 6e wrong..
Answer:
Freezing Point = 7.1 °C
Explanation:
The boiling point changed from 101.5 °C to 104.6 °C
°C
The formula for the change in temperature is:
Where:
i: van't Hoff factor
K_{b}: constant
m: molality
In this problem it is impossible to know the van't Hoff factor and the molality alone, but you can determinate how much is their multiplication:
Similar to the Boiling Point Elevation, the formula for the change of temperature for the Freezing Point Depression is:
Replacing im for 1.0299 and K_{f} for 4.63:
°C
The freezing point for that solution is:
Freezing Point = 11.9 - 4.77 = 7.1 °C