What completely ionizes in solution
1 answer:
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Hii there !
The reaction accompanying production of water in this case would be -
Thus ,by observing the reaction, we can conclude that 1 mole of Hydrogen (H)react with 1/2 mole of oxygen(O
)to produce 1 mole of water (H
O)
Therefore, 37.0 moles of hydrogen(H
) will be required to produce 37.0 moles of water.
Hope it helps.
Answer:
Explanation:
A physical change occurs when only the physical properties change. They are generally reversible and no new substances are formed.
However, in a chemical change, the chemical structures and properties change, plus new substances are formed.
Let's analyze each answer choice.
1. Change in state of matter
The state of matter is a physical property, so this is a physical change.
2. Precipitate was formed
A precipitate is a solid formed in a liquid solution. This is a new substance and a chemical change.
3. Unexpected change in odor.
A change in odor is a sign of chemical change.
4. Formation of bubbles
Bubbles signify the formation of gas or a new substance.
So, the best answer choice is <u>A. change in state of matter</u>