Answer:
a,c and d are exothermic
b is the endothermic
Explanation:
exothermic because energy required to form products is less than the energy required to break bonds in reactants.
endothermic because energy required to form products is larger than the energy required to break bonds in reactants.
Aphelion in miles =94290301
Perihelion in miles = 91200281
Explanation:
To convert km in mile we use the multiply the distance in km with 0.62, because there are 0.62 miles in 1 km.
Aphelion in miles = aphelion in km × 0.62
Aphelion in miles = 152081132 × 0.62
Aphelion in miles =94290301
Perihelion in miles = perihelion in km × 0.62
Perihelion in miles = 147097229 × 0.62
Perihelion in miles = 91200281
Learn more about:
conversion of units
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Physical properties help identifying a substance and how it changes.
For example: if a substance crushes easily that means it has a low density, but if it’s hard and doesn’t crush easily, that means it has a strong high density.
And eventually the substance would not end up forming a new substance.
Look at the picture below to understand more about physical changes.
Answer:
2D structure is based on skeletal formula and
3D structure is based on ball and rod model
Explanation:
Please find the attached image of 2 D and 3 D structure of cis-4-nonene
The 2D structure of Cis-4 nonene resembles the shape of skeletal formula. Almost every organic molecule has notation of skeletal formula. Each carbon atom is connected to sufficient number of hydrogen atom so that the valence of each carbon atom is satisfied.
The carbon atom is located at the corner while the hydrogen atom are not indicated.
The three dimensional structure of Cis-4 nonene is based on stick and ball model where ball represents the various types of atoms and the rod length represents the bond. White ball represents the hydrogen atom and grey ball represents the carbon atoms.
The molecules move slower when you remove the heat