Answer:
Number 1
Explanation:
O The ice at 0 degrees is warmer than the ice at -30 degrees.
Chemical properties describe how a material will react in a chemical reaction.
Physical properties describe such as color.
volume and mass are not properties, they are amounts. Density is a physical property because it s the ratio between mass and volume and does not change with amount.
Temperature is not a property.
Calories would be a chemical property because it describes chemical bonds. Energy is stored in the chemical bonds.
Chemical properties of the cake would be that it burns, another could be that it spoils, can be digested,
Calculate the heat gained by the water first.
q = mCpΔT
m = 20.0 g
Cp = 4.186 J/g°C
ΔT = T(final) - T(initial) = 15.0°C - 10.0°C = 5.0°C
q = (20.0)(4.186)(5.0) = 419 J
This is equal to the heat lost by the metal, so calculate Cp for the metal, given:
q = -419 J (negative because heat was lost)
m = 5.00 g
ΔT = 15.0°C - 100.0°C = -85.0°C (negative because the temperature decreased)
q = mCpΔT —> Solve for Cp —> Cp = q/mΔT
Cp = -419 / (5.00 • -85.0) = 0.986 J/g°C
Answer: If you were in a car and maintained an average speed of 60mph (96 kmh) over the course of your it would take you around 3.72 hours to get from Dallas to Shreveport.
Explanation: i just had to calculate the time and the distance and how long it would take with different speeds and this is the closest one i got.