Answer:
B
Explanation:
Double Covalent bonds or as you say "binary" bonds consists of 2 non-metals only, nothing else.
Hope this helps!
The answer should be a) always six. The chemical reaction is the process of molecule break down and form again. So the molecule will change but the atom will not change both type and number.
The answer is c)11 because copper has 11 valence electrons
Answer:
E = 3.825×10⁻¹⁹ J
Explanation:
Wavelength of photon = 5.2 ×10⁻⁷m
Energy of photon = ?
Solution:
Formula:
E = hc/λ
h = plancks constant = 6.63×10⁻³⁴ Js
c = speed of wave = 3×10⁸ m/s
by putting values,
E = 6.63×10⁻³⁴ Js ×3×10⁸ m/s / 5.2 ×10⁻⁷m
E = 19.89×10⁻²⁶ J.m / 5.2 ×10⁻⁷m
E = 3.825×10⁻¹⁹ J
Answer:
Table salt i might be wrong
