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lorasvet [3.4K]
3 years ago
5

Is a glow stick Endothermic or exothermic ?

Chemistry
1 answer:
Daniel [21]3 years ago
7 0

Answer:

exothermic

Explanation:

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Drupady [299]

The percentage of CO2 increased 48 percent. Hope this helped!

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3 years ago
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sveta [45]
Iron 1 chlorine 3 for number what I suggest you do is look at the periodic table online and then look at the numbers and see how many are there
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3 years ago
An atom has 6 protons and 9 neutrons in its nucleus. Calculate the mass number of the atom​
pshichka [43]

Answer:

6+9=15

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5 0
3 years ago
(V) A solution of hydrogen chloride is an electrolyte but a solution of
tiny-mole [99]

Answer:

When hydrogen reacts with chlorine, hydrogen chloride is formed. Hydrogen chloride is a gas, and has the formula HCl(g).

When hydrogen chloride dissolves in water, hydrochloric acid is formed. This has the same formula, but you can tell the difference because of the state symbol (aq), which stands for ‘aqueous’. The formula is written as HCl(aq).

Hydrogen chloride is made from molecules. The hydrogen atom and the chlorine atom are joined by a covalent bond. When hydrogen chloride forms hydrochloric acid, the molecules split into ions.

HCl(aq) → H+(aq) + Cl-(aq)

The H+ ions make this aqueous solution acidic. The solution also conducts electricity because it contains ions that are free to move.

However, when hydrogen chloride gas dissolves in a solvent called methylbenzene, the molecules do not split up. A solution of HCl in methylbenzene does not contain hydrogen ions, so it is not acidic. The solution also has a low electrical conductivity.

4 0
3 years ago
A submarine fills a special storage area known as ballast with water in order to increase its density. This allows it to dive de
Art [367]

Answer:

The submarine will rise.

Explanation:

To get a submarine to surface, the main vents in the top of the tank are closed and high-pressure compressed air is blown into the ballast tanks, forcing the water out through the flood ports at the bottom of the tank. This increases the vessel's displacement.

Happy Hollidays!!  :)

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2 years ago
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