Answer:
I got 1.82
Explanation:
Explanation: pH is given by the equation,. pH=−log[H+]. [H+] is the hydrogen ion concentration in terms of morality.
Answer:
The nichrome wire is dirty.
The solution is contaminated.
Explanation:
If the nichrome wire is dirty, it may contain sodium contaminants which may be responsible for the yellow flame. The nichrome wire is first inserted into the flame without the sample to check for impurities.
The test solution may also have been contaminated. This leads to the appearance of a colour different from the expected colour of the test cation in the solution.
<span>In the Bronsted-Lowry model of acids and bases, a(n) _acid____ is a hydrogen donor and a(n) _base____ is a hydrogen acceptor.</span>
False because when a substance changes from one state of matter to another it is a physical change no matter how many states of matter it skips
B. Because there are 3 molecules in right and 2 molecules in the left, so entropy rises.
