Answer:
B. That energy can only be converted between different forms
Explanation:
The law of conservation of energy implies that energy can only be converted between different forms but can neither be created nor destroyed.
Energy is the ability to do work. It is very important physical quantity that is essential to all life forms.
Energy according to the law of conservation of energy is not produced neither is it destroyed.
Energy is simply transformed from one form to another.
Answer:
2.5moles of Fe(OH)3
Explanation:
i don't know how to explain this
Molality can be expressed by moles of solute over kilograms of solvent. the question asks the molality of 0.25m NaCI is equal to 0.25 moles of NaCI over 1kg of water.
(g).
That is the symbol typically put next to elements as a subscript to indicate that an element is a gas.
For instance, H2(g).
Symbols vary for other states of matter and etc.
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Answer:
See explanation.
Explanation:
Hello!
In this case, since the main molecular reaction that is taken place in the beaker is:
In such a way, we understand that one breaker contained silver nitrate and the other one barium iodide. Thus, the complete molecular equations turns out:
Now, for the complete ionic equation, we just ionize the aqueous species:
Finally, for the net ionic equation we cancel out barium and nitrate ions as the spectator one because they are both sides on the equation:
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