Answer:
type of gasoline
Explanation:
Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring out a measurable outcome or response.
In this experiment involving how the type of gasoline put in a car affect how fast the car can drive, the independent variable is the TYPE OF GASOLINE because it is what the experimenter changes in order to see it's effect on the speed of the car (dependent variable).
Answer:
100 cal
Explanation:
Given data:
Mass of carbohydrate = 19 g
Mass of protein = 1 g
Mass of fats = 4 g
Solution:
The average calories content of
Protein 4 cal/g
Carbohydrate 4 cal/g
Fat 9 cal/g
Then,
1 g protein × 4 cal/g = 4 cal
4 g fat × 9 cal/g = 36 cal
19 g carb. × 4 cal/g = 76 cal
Total calories = 116 cal
Round to one significant figure = 100 cal
Answer: Rotation occurs at single bonds that are sigma bonds. Rotational barrier is the amount of activation energy required to covert rotamer to another by rotation that occurs around the sigma bond(C-C single bond). Due to the presence of steric hindrance that is the nonbonding interaction effects the reactivity of ions and molecules, activation energy increases. So the rotational barrier in butenyl cation is high.
