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il63 [147K]
3 years ago
9

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

Chemistry
1 answer:
Arisa [49]3 years ago
4 0
Gas is released by addition of the tablet into water. It is possible to capture the gas emitted and test it - it will be carbon dioxide.

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Graciella divided her grapes equally among 6 friends. If each friend received 16 grapes how many grapes did Graciella have?
DIA [1.3K]

Answer: She had 96 grapes.

Explanation:

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3 years ago
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Prompt
barxatty [35]

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Clear Communication

Explanation:

Clear communication in key when working with a team on a project. Without communication things get messy. Having clear communication with your team mates helps to prevent miscommunication, issues in planning and completing the project, and more. Clear communication can also help you to hear everybody out to come out with the best version of your project and to prevent fighting that would take up time that you could be working.

5 0
2 years ago
A student collected a 47.5 mL sample of gas in the lab at 0.8 atm pressure and 29.00C. What volume would this gas sample occupy
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8 0
3 years ago
Is melting sugar a chemical or physical change? Please provide an explanation
liraira [26]

Answer:

Hola Amigo! Here's Ur Answer :D

Explanation:

The chemical reaction we are most familiar with is that of melting: sugar decomposes at a temperature ranging between 184 and 186°C. This is a very recent discovery we owe to a team of researchers in Illinois. Basically, when we heat sucrose gently, this produces a phenomenon known as “ apparent melting ”.

Happy to Help! :D

3 0
3 years ago
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Which is the best reason for choosing the beaker for heating the solution? The beaker is the only container that can withstand h
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Answer: The beaker will not tip over when placed on the hot plate


Justification:


Since beakers have flat surface bottoms (usually and this is the condition to use them for this particular application) they can be placed safely on the hot plate without the risk that the they tip over.


Beakers are wide mouth cylindrical vessels used in laboratories to store, mix and heat liquids. Most are made of glass, in which case the glass is resistant to the flame and does not break when exposed to high temperatures or when is heated by direct contact on a hot plate.


So, their safe shape (flat bottom) that makes them stable, along with their ability to withstand high temperatures, make them suitable to heat solutions in laboratories.



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3 years ago
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