5.601x10^3
The decimal has to be in front of the first number
B. The amount of pressure exerted by a solid is solely dependent on its mass
let me know if i am wrong
Answer:
False
Explanation:
Water melting from ice into a liquid is not a chemical reaction or chemical change. It is merely a phase change from solid to liquid.
1.506 × 10²³ carbon atoms
Explanation:
First we calculate the number of moles of calcium carbonate (CaCO₃) contained in 25 g.
number of moles = mass / molecular weight
number of moles of CaCO₃ = 25 / 100 = 0.25 moles
Now we make use of Avogadro's number which tell us that we have 6.022 × 10²³ molecules (or atoms) in one mole of substance.
Now in our case:
if in 1 mole of CaCO₃ we have 1 × 6.022 × 10²³ carbon atoms
then in 0.25 moles of CaCO₃ we have X carbon atoms
X = (0.25 × 1 × 6.022 × 10²³) / 1
X = 1.506 × 10²³ carbon atoms
Learn more:
Avogadro's number
brainly.com/question/1445383
Answer:
B.Potential energy from inter-molecular forces
Explanation:
Molecules in both the liquid and gas phase exhibit vibrational, rotational and translational degrees of freedom i.e. they have kinetic energy of vibration, rotation and translation.
However, molecules in the gas phase move freely and quickly relative to the liquid phase. This is because in the liquid phase molecules experience stronger intermolecular forces of attraction which hold them closer and slow down their motion.
