I think it is b.heat transfers to his body from the water by conduction
Answer:
Baking soda and vinegar combine and bubbles (a gas) are produced
Two liquids combine to form a solid substance
A match burns
Explanation:
Use Charles' Law: V1/T1 = V2/T2. We assume the pressure and mass of the helium is constant. The units for temperature must be in Kelvin to use this equation (x °C = x + 273.15 K).
We want to solve for the new volume after the temperature is increased from 25 °C (298.15 K) to 55 °C (328.15 K). Since the volume and temperature of a gas at a constant pressure are directly proportional to each other, we should expect the new volume of the balloon to be greater than the initial 45 L.
Rearranging Charles' Law to solve for V2, we get V2 = V1T2/T1.
(45 L)(328.15 K)/(298.15 K) = 49.5 ≈ 50 L (if we're considering sig figs).
Answer:
1 2/15
Explanation:
2/3 + 7/15 = 17/15 =1 2/15
Answer:
2H2O
It's a double displacement reaction
