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stira [4]
2 years ago
5

Would any Chemistry braniacs be kind enough to help explain how to work these out? Any help is appreciated, thanks

Chemistry
1 answer:
o-na [289]2 years ago
7 0

Answer:

NO.3) Mass of Al2O3 formed = 229.5g

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Nitrogen is used to keep food frozen during transportation.
Greeley [361]

Answer:

Gaseous nitrogen has unique chemical and physical properties that make it suitable for use in food processing. Nitrogen is inert which means it will not react with prepared food materials, which can alter their aromas or flavors. Also, gaseous nitrogen will effectively displace oxygen minimizing oxidation and the growth of microorganisms that cause foods to lose their freshness and deteriorate faster.

Explanation:

Source: https://www.generon.com/using-nitrogen-gas-in-food-packaging/

4 0
2 years ago
Hospital patients are administered oxygen from an pressurized
Nataly_w [17]

Answer:

110L

Explanation:

Boyle's Law states that P1×V1=P2×V2

Volume is indirectly proportional to Pressure so P×V is constant

P1=55atm

V1=6L

P2=3atm

V2 is to be found

P1×V1=P2×V2

6×55=3×V2

330=3×V2

Answer: V2=110L

8 0
3 years ago
Which of these mixtures is a suspension?
natita [175]

Answer:

D. apple juice

Explanation:

8 0
2 years ago
What type of reaction is represented by the following example? 2CO2 (g) + 4H2O (l) + 1452 kJ 2CH3OH (l) (g) + 3O2 (g) exothermic
Elodia [21]

endothermic  

I hope this helped :)

8 0
3 years ago
Read 2 more answers
.
snow_lady [41]

<u>Answer</u>:

This describes primary succession.

<u>Explanation</u>:

In the case of primary succession, the sequence of communities is formed in lifeless habitat. With the formation of the new ecosystem, life evolves gradually. In retreating glacier’s case, the new land is being revealed on its receding.  

During the initial stage, the land is void of soil and vegetation. This leads to micro-organisms to breakdown the bedrock and soil formation starts. With the efficient amount of soil creation the new vegetation starts.

4 0
3 years ago
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