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3 years ago

3. When did Sendong leave the PAR?

Geography

1 answer:

meriva3 years ago

7 0

December 18, 2013
Hope this helps!

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A geologist finds a layer of rock that is fine-grained rhyolite.

lys-0071 [83]

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3 years ago

Why is the world bank better than other supranational organizations? PLEASE HELP ILL GIVE BRAINLIEST

mestny [16]

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<h2>hope it helps</h2>

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2 years ago

Match the term in column 1 to definition in column 2

Bezzdna [24]

Answer:

Urban: located in a city; a densely populated area

Rural: located in a country; a sparsely populated area

urbanism: an emphasis on life, work...

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2 years ago

What is the Wt% of SiO2 in augite? (Ca, Fe, Mg, Na)(Mg,Fe,Al) (Si,Al)2 O6

vaieri [72.5K]

Answer:

The weight% of $SiO_2$ in augite is 13.16 %.

Explanation:

Atomic mass of calcium = 40 g/mol

Atomic mass of iron = 56 g/mol

Atomic mass of magnesium = 24 g/mol

Atomic mass of sodium = 23 g/mol

Atomic mass of aluminum = 27 g/mol

Atomic mass of silicon = 28 g/mol

Atomic mass of oxygen = 16 g/mol

Mass of $SiO_2=28 g/mol+ 2\time 16 g/mol=60 g/mol$

Molar mass of the augite $(Ca, Fe, Mg, Na)(Mg,Fe,Al)(Si,Al)_2 O_6$ = M

$M=40 g/mol+2\times 56 g/mol+2\times 24 g/mol+23 g/mol+3\times 27 g/mol+2\times 28 g/mol+6\times 16 g/mol=456 g/mol$

Weight% of $SiO_2$ in augite:

$w\%=\frac{60 g/mol}{456 g/mol}\times 100=13.16\%$

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3 years ago

How is general fertility rate different from fertility rate

Triss [41]

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The general fertility rate is an age/sex-specific birth rate while the total fertility rate is an age/sex-adjusted birth rate. The TFR is an age-adjusted rate because it is based on the assumption that there are the same number of women in each age group.

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2 years ago

3. When did Sendong leave the PAR?​

3. When did Sendong leave the PAR?