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pashok25 [27]
3 years ago
13

At 8:00, the temperature was 6 degrees Celsius (°C). Three hours later, the temperature was -13°C.

Chemistry
2 answers:
elena55 [62]3 years ago
7 0

Answer:

It changed by -7 degrees Celsius.

Explanation:

erastovalidia [21]3 years ago
4 0

it became 6 degree celcius more

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Complete the equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. Balanced equation:
shepuryov [24]

Answer : The balanced equation is,

HF+H_2O\rightleftharpoons H_3O^++F^-

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

The balanced chemical reaction will be,

HF+H_2O\rightleftharpoons H_3O^++F^-

In this reaction, hydrofluoric acid is act as a Bronsted Lowry-acid because it donate one hydrogen ion to H_2O and H_3O^+ is act as a Bronsted Lowry-base because it accept one hydrogen ion from HF.

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3 years ago
Answer only if you <br> had/have braces how long did it take to notice change with your braces on
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Answer:

about 2 years I think, you might have to ask your dentist

Explanation:

8 0
3 years ago
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Oxygen has 8 plus-charged protons. The number of minus-charged electrons is
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3 years ago
What happens to carbon atoms during photosynthesis?
ANEK [815]
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</span><span> 6 carbon compound that immediately splits into 2 molecules of 3-phosphoglycerate. 

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</span>hope it helps
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3 years ago
How many atoms are in 2.5 moles of beryllium atoms?
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As we know that there are avogadro no. of atoms in 9 g of beryllium.
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8 0
2 years ago
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