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jok3333 [9.3K]
2 years ago
15

Which type of plate boundary is associated with seafloor spreading at the source of the spread: convergent, divergent, or transf

orm?
HURRY!
Chemistry
1 answer:
aev [14]2 years ago
8 0
The answer is divergent
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The element is abundant in earths crust and combines with oxygen to form rocks and minerals. what element is it?
romanna [79]
The element is silicon (Si). It forms minerals like quartz and rocks such as granite.

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3 years ago
How many quarters fit in a 1.75 liter bottle?
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1.85 quarts can fit into a 1.75 liter bottle
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A runner wants to run 13.1 km . She knows that her running pace is 6.2 mi/h .How many minutes must she run? Hint: Use 6.2 mi/h a
frutty [35]

Answer:

  • <u>79 minutes</u>

Explanation:

1)<u> Convert the distance, 13.1 km to miles</u>

  • Conversion factor:

        1 = 1 mi / 1.61 km

  • 13.1 km [ 1 mi /  1.61 km ] = 8.1336 mi

2)<u> Use 6.2 mi/h as a converstion factor between distance and time</u>

  • 8.1366 mi × 1 / [6.2 mi/h] = 1.3124 h

3) <u>Convert 1.3124 h to minutes</u>

  • 1.3124 h × [ 60 min/h] = 78.7 min

Rounding to the nearest minutes (two significant figures):

  • 79 min ← answer
4 0
3 years ago
How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the densit
denpristay [2]

Balance the equation first: 

2 Fe+6 HNO3→2 Fe(NO3)3+3H2

Then calculate mass of Iron :

4.5×3.0×3.5 cm3(1 mL1 cm3)(7.87 g Fe1 ml)=371.86 g Fe

Now use Stoichiometry:

371.86 g Fe×(1 mol Fe55.85 g Fe)×(6 mol HNO32 mol Fe)=19.97 mol HNO3

Convert moles of nitric acid to grams

19.97 mol HNO3×(63.01 g HNO31 mol HNO3)=1258.3 g HNO3



7 0
3 years ago
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Which reaction leads to the formation of a precipitate?
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2Ca(OH)2(aq) + 2FeCl3(aq) on the dead locs

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3 years ago
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