The correct answer C. Dry ice subliming to carbon dioxide is an example of a physical change. This type of change is when only the appearance changed but the substance is still the same. It is the opposite of a chemical change where a new substance is formed from this change.
Answer:
Ice carving. It's still ice, it's not water, and it changes shape while not changing it's matter
Explanation:
Answer:
To see if the water is safe to drink.
Explanation:
It is important for local water to be tested to see how the water quality is and to check if there are any pollutants (such as fertilizers or oil). Most of the world's water is not safe to consume, it would be useful to know what your local water is like.
Answer:
0.00142
Explanation:
44.8l =44800 centimeter cubic
64÷44800=
0.00142
Answer:
Explanation:
Assumption:
Ideal Vapors/Ideal gas
Formula for ideal Gas:
Where:
P is the pressure
V is the Volume
n is the number of moles = m/M
R_u is Universal Gas Constant=0.08314 L*bar/(K*mol)
T is the temperature in Kelvin
Calculating Number of moles n:
n=Mass/Molar Mass
Molar Mass of gasoline=114g/mol
Now: