Answer:
I believe 1+
Explanation:
when Na loses 1 electron in the outer shell it has 8 valence protons on it's new most outer shell. so now it has 11 protons and 10 electrons. that extra proton (positively charged) adds one extra charge. so +1
You can boil the salt water. The water will evaporate while the salt will be left behind because it's a solid. Salt has a much higher boiling point than water (2,575° F), so that's why it won't evaporate with the water.
Answer:
Energy and frequency are directly related to each other.
Explanation:
Energy of photon is directly related to each other. The wave with high frequency have high energy.
Mathematical expression:
E = h.f
f = frequency
h = plancks constant
while wavelength and energy are inversely related to each other. The wave with higher wavelength have low energy.
Mathematical relationship:
f = c/λ
F = h. c/λ
Example:
Frequency of wave = 1.0 ×10¹¹ Hz
Wavelength of wave = ?
Energy of wave = ?
Solution:
speed of wave = wavelength × frequency
wavelength = speed of wave/ frequency
wavelength = 3×10⁸ m/s / 1.0 ×10¹¹ s⁻¹
wavelength = 3×10⁻³ m
Energy:
E = h. f
E = 6.63×10⁻³⁴ Kg.m²/s × 1.0 ×10¹¹ s⁻¹
E = 6.63×10⁻²³ Kg.m²/s²
Kg.m²/s² = j
E = 6.63×10⁻²³ j
Answer:
10.15748 so it is none of the above
Explanation:
I just know
Answer:
1.85 × 10⁻⁶
Explanation:
0.0003 ÷ 162 = 1.851851852 × 10⁻⁶ ⇒ 1.85 × 10⁻⁶
Hope that helps.
