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blagie [28]
3 years ago
13

Fill in the blanks to complete the following table. Symbol Ion formed Number of electrons in ion Number of protons in ion Cl ___

__ _____ 17 Te _____ 54 _____ Br Br− _____ _____ _____ Mg2+ _____ 12
Chemistry
1 answer:
Ray Of Light [21]3 years ago
4 0

Answer:

Cl has 17 electron and 17 proton

Te has 52 electrons and 52 proton and 76 neutrons

Br has 35 electrons

bromine ion Br- has 36 electrons and 35 protons

Ma+2 has 10 electrons and 12 protons

Explanation:

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In the laboratory, a quantity of I2 was reacted with excess H2 to give 1.26 moles of HI. It is also known that the percent yield
Anon25 [30]

Answer:

1.008moles of iodine

Explanation:

Hello,

This question requires us to calculate the theoretical yield of I₂ or number of moles that reacted.

Percent yield = (actual yield / estimated yield) × 100

Actual yield = 1.2moles

Estimated yield = ?

Percentage yield = 84%

84 / 100 = 1.2 / x

Cross multiply and solve for x

100x = 84 × 1.2

100x = 100.8

x = 100.8/100

x = 1.008moles

1.008 moles of I₂ reacted in excess of H₂ to give 1.2 moles of HI

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Uranium-238 decays very slowly.its half-life is 4.47 billion years.
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There is an error in the rate-determining step of the following proposed mechanism.
yulyashka [42]

Answer:

The steps with correct mechanism are given below:

C

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