Answer:
1 only
Explanation:
a compound is a mix of two different elements, two of the same element is just a molecule
Answer:
density increases with more helium because of its molar mass
Answer:
centrifugation
Explanation:
Well the process centrifugation is used for separation of cream from curd.Well the force rotates it and the heavy and light particles are separated.Ij this way we can separate this mixture.
Hope it helps you.
Answer:
The energy of photon is 20.22×10⁻¹⁷ J
Explanation:
Given data:
Frequency of photon = 3.05×10¹⁷ Hz
Energy of photon = ?
Solution:
Formula:
E = hf
h = planck's constant = 6.63×10⁻³⁴ Js
Now we will put the values in formula.
E = 6.63×10⁻³⁴ Js × 3.05×10¹⁷ Hz
Hz = s⁻¹
E = 20.22×10⁻¹⁷ J
Thus, the energy of photon is 20.22×10⁻¹⁷ J
Answer:
the least malleable in its solid state A.phosphorus (P)