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DochEvi [55]
2 years ago
11

How many km is 250 m?

Chemistry
1 answer:
Alex_Xolod [135]2 years ago
4 0
There are 0.25 kilometers in 250 meters
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Refer to the balanced equation. (PLEASE HELP QUICK)
kolezko [41]

Answer: C) 5.12\times 10^1 L Cl_2

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According to Avogadro's law, 1 mole of every gas occupies 22.4 Liters at STP.

Thus from the balanced chemical equation, 8 moles of hydrogen sulfide reacts with 8 moles of chlorine gas.

i.e 8 moles of hydrogen sulfide reacts with =8\times 22.4L=179.2L of chlorine gas.

2.28  moles of hydrogen sulfide reacts with =\frac{179.2}{8}\times 2.28=51.2L=5.12\times 10^1L of chlorine gas.

6 0
3 years ago
How many moles of KNO3 are needed to make 600 ml of a 1.3M solution?
ludmilkaskok [199]
M = n / V

Where, M is molarity (M or mol/L), n is number of moles of the solute (mol) and V is volume of the solution (L).

Here the solute is KNO₃.
 The given molarity is 1.3 M
 This means 1L of solution has 1.3 moles of KNO₃.

Hence moles in 600 mL = 1.3 M x 0.6 L = 0.78 mol

Therefore to make 1.3 M KNO₃ solution, needed moles of KNO₃ is 0.78 mol
7 0
3 years ago
What is the advantage of rusting​
Naddika [18.5K]

Answer:

Provide more strength

Explanation:

Rust is metal that has been oxidised . Oxides are usually more fragile and porous than their crystals metal equivalents. Some oxides, such as Aluminum oxide, are useful because they have a thin, strong shell that protects the metal from further corrosion.

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In which way are photosynthesis and cellular respiration different?
Lyrx [107]

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D. Photosynthesis uses carbon dioxide while cellular produces carbon dioxide

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Activity 32 can someone explain how u do this?.
gizmo_the_mogwai [7]

Answer:

write a question and answer it with the words

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Gloria/ the bank/ the car

A: where is Gloria going? To the bank, right?

B: Yes, she's going to the bank. She's going in a car.

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