Answer:
The wavelength of this light is 780.4 nm.
Explanation:
Given that,
The frequency of laser light, 
We need to find the wavelength of this light.
We know that,
Where
is the wavelength of light
So,
So, the wavelength of this light is 780.4 nm.
<span>The statement that most accurately and effectively described the polarity and electronegativity in water is that the covalent bonds within these water molecules bind with the single oxygen atom in the molecule, as well as the two hydrogen atoms that it holds as well.</span>
When the molar mass M = mass (g)/ no.of moles (Mol)
∴ moles= 0.271 g / M
By using the gas equation:
PV = n RT
when P is the pressure = 847 mmHg / 760 = 1.11 atm
V is the volume = 0.294 L
n = 0.271 / M
R is constant = 0.0821
T= 140+273 = 413 K
so by substitution:
when n = PV/RT
∴ 0.271/ M = 1.11 atm *0.294 L/ 0.0821 *413
∴ M = 28
when the empirical formula of CH2 = 12+2 = 14
∴ the exact no.of moles = 28/14 = 2
∴the molecular formula = 2(CH2) = C2H4
Answer:
bruh, just go in your bathroom and look for cleaning products
Explanation:
Elements in same group / family tend to have similar properties ( but not exactly the same). Since, iron and silver are in two different group / families, they have different properties.
Also, Silver and iron have different properties because they have different atomic structure. Having different atomic structure means bonding differently with other elements. So, they have different properties.
