Answer:
Explanation:
Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal
Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride
We have the equation of reaction as:
Good afternoon,
Infrared light wavelengths = 1,000 nm - 750 nm
Visible light wavelengths = 750 nm - 400 nm
UV (Ultraviolet) light wavelengths = 400 nm - 10nm
So, the correct order is Infrared - Visible - Ultraviolet
I hope this has satisfied you, and if you need anymore help, feel free to ask.
Have a good afternoon!
Calcium belongs to the alkaline earth metal group. Within a group, the melting point decreases from top to bottom. This is because the as the atomic radii increases the outer valence electrons are shielded by the inner electrons and experience a lower nuclear attraction. As a result the bonds can be broken easily which lowers their melting point.
The three elements below Calcium ib Group II A which have a lower melting point are: Strontium (Sr), Barium (Ba) and Radium (Ra)
A proton contains 2 up quark 1 down quark and gluons which the 3 quarks exchange. Now since there is only 1 option I would choose gluon. But it's up to you.
Answer:
78.12 L
Explanation:
Given that,
Initial volume, V₁ = 105 L
Initial temperature, T₁ = 20°C = 20+273 = 293 K
New temperature, T₂ = -55 °C = 218 K
We need to find the new volume of the balloon. The relation between the volume and the temperature is given by :
Where
V₂ is the new volume
So, the new volume is 78.12 L.
