Heat energy can be calculated by using the
specific heat of a substance multiplying it to the mass of the sample and the
change in temperature. It is expressed as:
<span>Energy = mCΔT</span>
<span>Energy = 100 (0.90) (150 - 30)</span>
Energy = 10800 J
<span>First
of all, food is the most important thing. If there is no food, or if
there isn't enough, than the crocodile population cant expand.
Second,humans are endangering many habitats (including the alligator
species). By pollution, logging, and other stuff. We
are destroying ecosystems and animal habitats very quickly.
Finally, crocodiles are ectothermic reptiles. They rely on the sun to
heat their bodies. If a crocodile was in an area where the sun is a limited resource, then of
course that could be a limiting factor for a crocodile. </span>
Answer:
The vegetable oils are liquid at room temperature. They contain double bonds. During hydrogenation double bonds break hydrogen is introduced and form vegetable ghee.
Explanation:
Hydrogenation:
It is the chemical process in which hydrogen is introduced in unsaturated hydrocarbons in the presence of catalyst Ni.
Simple hydrogenation reaction:
H₂C = CH₂ + H₂ → CH₃-CH₃
Ni
Hydrogenation is used on industrial level in the production of vegetable ghee.
The unsaturated hydrocarbons, fatty acids undergoes hydrogenation and form ghee.
The vegetable oils are liquid at room temperature. They contain double bonds. During hydrogenation double bonds break hydrogen is introduced and form vegetable ghee.
Bonds formed between atoms can be classified as ionic and covalent
Ionic bonds are formed between atoms that have a high difference in the electronegativity values.
In contrast, bonds formed between atoms that have a difference in electronegativity lower than the ionic counterparts are polar covalent bonds. If the atoms have very similar electronegativities, they form non-polar covalent bonds.
In H2S, the S atom is bonded to 2 H atoms. The electronegativity of H = 2.2 and S= 2.56. Since the difference is not high the bond formed will be covalent (polar covalent).
A) a column
example: earth alkaline metals
