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Setler79 [48]
2 years ago
15

What is the range of accuracy for food temperature?.

Chemistry
1 answer:
telo118 [61]2 years ago
7 0

Answer:

+ 2 degrees Fahrenheit

Explanation:

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What is the [OH-] in a solution with a poh of 3.90
zheka24 [161]

Answer:

7.9433E-3

Explanation:

POH=-log OH

3.90=POH

OH=ANTILOG OF -3.90

=7.9433×10^-3

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3 years ago
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Why are halogens reactive?
erica [24]

<u>Halogens are reactive because:</u>

They have high electronegativity and also high nuclear charge. So, they are reactive and also gain an electron when they react with other elements.

Since they are very reactive, halogens are very harmful to living organisms. Some of the halogens are fluorine, chlorine, bromine, iodine, astatine. These are mostly non metals. Fluorine is one of the most reactive gas and also very toxic gas. When Fluorine reacts with glass along with small amounts of water, it forms silicon tetra fluoride (SiF4). Hence fluorine should be handled with substances like the inert organofluorine compound Teflon.

8 0
3 years ago
Which molecule,when added to a solution, would give the solution the highest ph?
olchik [2.2K]
The correct answer among the choices given is option A. Hydrochloric acid is a much stronger acid than sulfuric acid given that the concentration both is equal. This can be proved by the pKa of these acids. Hydrochloric acid has a pKa of -6  while the pKa of sulfuric acid is -3. The lower the value of the pKa, the stronger the acidity of the substance.
7 0
3 years ago
Two of the emission wavelengths in the hydrogen emission spectrum are 410 nm and 434 nm. One of these is due to the n=6 to n=2 t
tia_tia [17]
The 410 mm wavelength corresponds to the n=6 to n=2 transition, the 434 mm wavelength corresponds to the n=5 to n=2 transition.

Planck's equation: E=hc/wavelength
n=6 to n=2 corresponds to a higher energy transition and hence shorter wavelength, 410nm.

3 0
3 years ago
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