395.2kcal
Explanation:
Given parameters:
Energy required to break one C-H bond = 98.8kcals
Unknown:
Energy required to break methane = ?
Solution:
The bond dissociation energy is the heat energy absorbed in breaking a covalent bond in the gas phase to its constituents elements.
Solving
CH₄ has 4 C-H bonds
To break 1 C-H bond, 98.8kcals of energy was used,
To break 4 of the bonds; 4 x 98.8kcals will be used = 395.2kcal
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Answer:
(B)False
Explanation:
active transport is the movment from a region of higher to a region o lower concentration
Answer:
most likely D: using fewer disposable items
Explanation:
using fewer disposable items would cut down on waste and plastic in the ocean
Homogeneous is the answer
There are 4 significant figures