The atomic density cuases them to be different u can measure the weight mass density # 28 was cut off picture by the way
Answer:
solo I
Explanation:
Según esta teoría para que se produzca una reacción deben cumplirse tres condiciones: Las moléculas de los reactivos tienen que chocar entre sí. Estos choques deben de producirse con energía suficiente de forma que se puedan romper y formar enlaces químicos.
Answer:
The wavelength the light emitted by a hydrogen atom during a transition is 1006 nm.
Explanation:
By using Rydberg's Equation we cab determine the wavelength of the light:
Where,
= Energy difference
= Rydberg's Constant
= Final energy level
= Initial energy level
We have : 
, Z = 1
Now by using Plank's equation we can determine the wavelength of the light emitted.
E = Energy of the emitted light
h = Planck's constant = 
c = speed of light = 
For the given transition the energy of the light = E
The wavelength the light emitted by a hydrogen atom during a transition is 1006 nm.
Answer:
a) 727.5 kJ
Explanation:
Step 1: Data given
Mass of the piece of copper = 6.22 kg
Initial temperature of the copper = 20.5 °C
Final temperature of the copper = 324.3 °C
Specific heat of copper = 0.385 J/g°C
Step 2:
Q = m*c*ΔT
⇒ with Q = heat transfer (in J)
⇒ with m = the mass of the object (in grams) = 6220 grams
⇒ with c = the specific heat capacity = 0.385 J/g°C
⇒ with ΔT = T2 -T1 = 324.3 - 20.5 = 303.8
Q = 6220 grams * 0.385 J/g°C * 303.8 °C
Q = 727509.9 J = 727.5 kJ
b) This heat capacity is the heat capacity given for a copper at a temperature of 25°C
