3 years ago

What causes the formation of mountain ranges along the ocean floor?

2 answers:

4 0

I think it is plate tectonics pulls the ocean floor apart and magma pushes up forming mountains, please tell me if i’m wrong but i hope this helps

Rainbow [258]3 years ago

3 0

It’s the second answer

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How many dm3 of oxygen at STP would be required to react completely with 38.8g of propane? (3 marks)

11Alexandr11 [23.1K]

$98.56 dm^3$ of oxygen at STP would be required to react completely with 38.8g of propane.

<u>Given that :</u>

molar mass of propane = 44 g/mol

mass of propane = 38.8 g

∴ Moles present in 38.8 g of propane = $\frac{38.8}{44}$ = 0.88 mole

<u>applying rule of balanced equations </u>

1 mole of propane = 5 moles of oxygen

0.88 mole of propane = 5 * 0.88 = 4.4 moles of oxygen

Note : volume of 1 mole of oxygen at STP = $22.4 dm^3$

∴Total volume of oxygen required at STP = 22.4 * 4.4 = $98.56 dm^3$

Hence we can conclude that the volume of oxygen at STP required to react completely $98.56 dm^3$

Learn more : brainly.com/question/16998374

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1 year ago

Nadusha1986 [10]

Answer:

1 electron

Explanation:

These metals have a single electron in the outer shell

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3 years ago

Please helpp: All things that are acidic will eventually produce ___ in an aqueous solution?

BARSIC [14]

Answer:

Protons / H+ ions

Explanation:

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Iron-59 has a half-life of 45.1 days. how old is an iron nail if the fe-59 content is 25% that of a new sample of iron? show all

Yuliya22 [10]

I have attached a paper with the answer. hope you understand. let me know if you have any question

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Calculate the density in g/mL of 2.0L of gasoline that weighs 1.26 kg

quester [9]

2.0 L in mL :

2.0 x 1000 => 2000 mL

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2 years ago