D. In a Chemical reaction, elements are not changed, just rearranged. Small amounts of energy take place.
Answer:
V = 0.5 L
Explanation:
Given data:
Moles of nitrogen = 2.23×10⁻² mol (0.0223 mol)
Temperature = 273 K
Pressure = 1 atm
Volume = ?
Solution:
PV = nRT
V = nRT / P
V = 0.0223 mol × 0.0821 atm. mol⁻¹. L . k⁻¹ × 273 K / 1 atm
V = 0.5 L
The melting of the ice cube indicates physical change has taken place
27*9=243 if one mole is equal to 27 grams times that by 9
Answer:
0.0000004262m
Explanation:
i just looked up a converter.
