Answer:
igão caiu na pegadinha do lemão
Explanation:
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
igão caiu na pegadinha do lemão
Answer:
The maximum kinetic energy of electron is = 2.93 ×
Joule
Explanation:
We know that total energy
------------ (1)
Here h = plank's constant = 6.62 ×
J s
c = speed of light = 3 ×
= 261 nm = 261 ×
m
Put all these values in equation (1) we get
E = 7.6 ×
J
We know that
Total energy = Energy to remove an electron + K.E of electron
Energy to remove an electron = 
Energy to remove an electron = 4.67 ×
J
K.E of electron = Total energy - Energy to remove an electron
K.E of electron = 7.6 ×
- 4.67 × 
K.E of electron = 2.93 ×
Joule
Therefore the maximum kinetic energy of electron is = 2.93 ×
Joule
1. Cu + 2AgNO3 ==> 2Ag + Cu(NO3)2 ... balanced equation. This is both a single replacement reaction and an oxidation reduction reaction.
Moles of Cu present = 19.0 g Cu x 1 mole Cu/63.55 g = 0.2990 moles Cu
Moles AgNO3 = 125 g AgNO3 x 1 mole AgNO3/169.9 g = 0.7357 moles AgNO3
Which reactant is limiting? It will be Cu because the mole ratio is 2 AgNO3 to 1 Cu and there is more than enough AgNO3. Thus, amount of Ag formed will depend on moles of Cu (0.2990)
Moles of Ag formed = 0.2990 moles Cu x 2 moles Ag/mole Cu = 0.598 moles Ag
Mass (grams) of Ag formed = 0.598 moles Ag x 107.9 g/mole = 64.52 g = 64.5 g of Ag (3 sig. figs.)
Answer:
Thermal expansion is the tendency of matter to change its shape, area, and volume in response to a change in temperature.
Explanation:
Answer:
a) molarity of CCl3F = 1.12 × 10^-11 mol/dm³
Molarity of CCl2F2 = 2.20 × 10^-11 mol/dm³
B) molarity of CCL3F = 7.96 × 10 ^-13 mol/dm³
Molarity of CCl2F2 = 1.55 × 10^-12 mol/dm³
Explanation:
Using the ideal gas equation:
PV = nRT
Further explanations are found in the attachment below.