false
No, not all chemical reactions are reversible. Some reactions are irreversible, meaning they cannot easily be reversed to reform the original reactants.
True. The two major components in the back are the spinal column (vertebral column) and the spinal cord.
Theoretically, chemical equations are reversible but in reality this is not true. Combustion is not normally written as a reversible reaction unless in an extreme hypothetical sense. Generally, one cannot tell if a chemical equation is reversible. It is a matter of experience and study.
No, it is not true. Reactions can be reversible, meaning they can proceed in both directions depending on the conditions. If a reaction releases energy in one direction, it may require an input of energy to proceed in the opposite direction, but it can still occur.
Weak acids only partially ionize in solution, leading to a reversible reaction. They have a low tendency to donate protons and have a higher equilibrium constant for the reverse reaction compared to the forward reaction. Weak acids typically have a pH close to neutral when diluted.
What we learn can seldom be unlearned
true
it is true that the majority of old people say that they are seldom bored.
The majority of older people say that they are seldom bored is true.
True
A reversible statement is one where the truth of the statement would still hold if the subject and predicate were reversed. For example, "All squares are rectangles" is reversible because it is also true that "All rectangles are squares."
No, not all chemical reactions are reversible. Some reactions are irreversible, meaning they cannot easily be reversed to reform the original reactants.
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True
True
This is a true statement. See the related link for more information about the movement patterns of North America's major air masses.
true?