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svetoff [14.1K]
3 years ago
12

Plss help ill give 30 points

Chemistry
1 answer:
hjlf3 years ago
4 0

Answer: Oceanic zones: The ocean is divided into different zones based on water depth, light availability, and distance from the shoreline.

Explanation:

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Under the same conditions of temperature and pressure, which of the following gases would behave most like an ideal gas? A)He(g)
umka21 [38]

Answer: He(g)

Explanation: I had the same question and I got the answer right

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Consider the reaction. 2 Al ( s ) + Fe 2 O 3 ( s ) heat −−→ Al 2 O 3 ( s ) + 2 Fe ( l ) If 17.3 kg Al reacts with an excess of F
IrinaVladis [17]

Answer:

32.7 kilograms of aluminium oxide  will be produced.

Explanation:

2 Al ( s ) + Fe_2O_3 ( s ) +heat\rightarrow Al_2O_3 ( s ) + 2 Fe ( l )

Mass of aluminum = 17.3 kg = 17300 g (1 kg = 1000 g )

Moles of aluminium = \frac{17300 g}{27 g/mol}=640.74 mol

According to reaction, 2 moles of aluminum gives 1 mole of aluminum oxide,then 640.74 moles of aluminum will give:

\frac{1}{2}\times 640.74 mol= 320.37 mol of aluminum oxide

Mass of 320.37 moles of aluminum oxides:

320.37 mol × 102 g/mol = 32,677.74 g = 32.67774 kg ≈ 32.7 kg

32.7 kilograms of aluminium oxide  will be produced.

6 0
3 years ago
Will mark as brainlest!
USPshnik [31]

A frequency of 60 MHz is close to the lower end of the old VHF-TV band.


c = f λ ...... where c is the speed of light, f is the frequency and λ is the wavelength

λ = c / f = 3.00x10^8 m/s / 6.0x10^7 1/s

λ = 5.0 m

3 0
3 years ago
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A 25. 0-ml sample of 0. 150 m hydrocyanic acid is titrated with a 0. 150 m naoh solution. What is the ph beforeany base is added
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stars,auroras,a neon sign

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ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!
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