Answer:
327.5 mmHg
Explanation:
By Boyle's law, P1V1=P2V2
10 L * 655 mmHg = 20 L * x
solve for x
x= (10*655)/20
x=327.5 mmHg
Photosynthesis
Explanation:
Photosynthesis is the process where green plants manufacture their food in the presence of carbon dioxide, water and sunlight.
In this process, carbon dioxide is used up in the process. This helps to remove carbon dioxide from the atmosphere.
CO₂ + H₂O → C₆H₁₂O₆ + O₂
sunlight
Learn more:
Photosynthesis brainly.com/question/4216541
#learnwithBrainly
Answer: bromine
Explanation:
There are a total of 2+2+6+2+6+2+10+5=35 electrons, meaning there are 35 protons. The element with atomic number 35 is <u>bromine</u>
Answer:
5.794 Food Cal/g or 5796 cal/g
Explanation:
If we consider that we have an adiabatic system (there is no transfer heat between the system and its surroundings) we can say that the energy lost by the peanut butter was the energy win for the combusted calorimeter and this can be seen in a temperature rise. Taking this into account we can say:
Q_cal = Q_peanutbutter
Q_cal=C*ΔT
Where
C is capacity in the combusted calorimeter (130 kJ/°C)
ΔT = 25.2-22.4 = 2.8 °C
Q_cal = 364 kJ = Q_peanutbutter
364kJ/15g =24.26 kJ/g
24.26 KJ/g * 1000 J/1kJ = 24260 J/g
24260 J/g * 1 Cal/4.1868J = 5794.40 Cal/g
If 1 food calorie = 1 Kcal
The answer is 5.794 Food Cal/g or 5.794 Kcal/g
Possibly chemical amount.