<span>thats weird im doin the same lab right now well idk this is wat i wrote
The way electron light is emitted from metal salts is when an element is heated, the electrons will be excited. Then as these electrons fall back from one energy level to another, they will emit photons of light. Those photons will have different colors depending on the elements and its discrete energy levels. The way a spectrographic experiment can help identify a particular metal ion is because this device separates light into different wavelengths and gives you their measurements. With this it is easier to classify to line emission spectra.</span>
Answer: a disturbance that transfers energy.
Explanation:
C2H2O4 C2HO4- + H+
0.175 - x x x + y
C2HO4- c2o42– + H+
x - y y x + y
K2 = (y) (x +y) / (x-y)
As, y << x
So, K2 = (y) (x) / (x)
K2 = y =6.1 × 10^–5
Hence, concentration of (c2o42–) 6.1 × 10^–5 M
Answer:
I' really don't know I'm sorry
Answer: 
moles
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Given mass of ethanol = 0.2301
Molar mass of ethanol = 46.07 g/mol
Thus there are moles of ethanol are present in the sample.
