B- lack of control.
the scientists did not have a proper control group.
The average speed of the boat is 32.8 kilometers per hour.
1 hour= 60 minuets
16.4km=30 minutes
30 mins times 2 is 60
16.4km times 2 is 32.8km
Force ehhehehe force hehehehe force anyway yeah that’s right
Answer:
The volume of the balloon would be (580.12m) cm^3
Explanation:
From the ideal gas equation,
PV = nRT
P is pressure in the balloon = 742 mmHg = 742/760 = 0.976 atm
V is the volume of the balloon
n is the number of moles of carbon dioxide in the balloon. Let the mass of carbon dioxide be m.
n = mass/MW = m/44 = (0.023m) mol
R is gas constant = 82.057 cm^3.atm/mol.K
T is temperature of the balloon = 27 °C = 27 + 273 = 300 K
V = 0.023m × 82.057 × 300/0.976 = (580.12m) cm^3