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iVinArrow [24]
3 years ago
14

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.....................................................................................................................................................................................................................................................................................................................................................................................

Chemistry
2 answers:
iogann1982 [59]3 years ago
4 0

Answer:

my big fhat black calwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwlk

viktelen [127]3 years ago
3 0

Answer:

HmmmmmmmmmmI think the answer is 69

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When sunlight passes through a prism, the different wavelengths separate into a(n)________ of colors.
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When sunlight passes through a prism, the different wavelengths separate into a spectrum of colors.
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By titration, it is found that 28.5 mL of 0.183 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the
maksim [4K]

Answer:

0.209M

Explanation:

M1V1=M2V2

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2 years ago
How many equivalents are present in 10 g of Ca2+? <br> 1 <br> 0.5 <br> 1.5 <br> 2
Lynna [10]

0.5

Explanation:

Given parameters:

Mass of Ca²⁺ = 10g

unknown:

Equivalent weight = ?

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Equivalent weight that is the amount of electrons which a substance gains or loses per mole.

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therefore;

  In 1 mole of  Ca²⁺, we have 2 equivalent weight

1 mol  Ca²⁺ = 2eq. wts. 

1 mol Ca x (40 g / 1 mol ) x (1 mol / 2 eq.wts.) = 20.0 g = 1 eq.wt. 

Therefore;

10.0 g  Ca²⁺ x (1 eq.wt. / 20.0 g) = 0.5 eq.wts.

learn more:

Molar mass brainly.com/question/2861244

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The average human body temperature is 98.6 °
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