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3 years ago

What is the oxidation state for bh3

Chemistry

1 answer:

kipiarov [429]3 years ago

7 0

Answer:

As hydrogen is more electronegative than boron, in BH3 the oxidation number of hydrogen should be taken as -1. (E. N. of B = 2.0 & E. N. of H = 2.1)

Suppose, oxidation number of B is x.

So, we can write, x + 3*(-1) = 0

=> x = +3

Therefore, oxidation num

Explanation:

As hydrogen is more electronegative than boron, in BH3 the oxidation number of hydrogen should be taken as -1. (E. N. of B = 2.0 & E. N. of H = 2.1)

Suppose, oxidation number of B is x.

So, we can write, x + 3*(-1) = 0

=> x = +3

Therefore, oxidation num

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Which gas has. an atomic mass of 15.999

sveticcg [70]

Answer: Oxygen (O)

Explanation:

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3 years ago

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After an experiment is complete and has been published, what process makes sure the results are reliable?

slavikrds [6]

Answer:

B. Peer review

Explanation:

Peer review ensures that the results of an experimental procedures are consistent are reliable and they meet their objective statement.

When peers which are professionals in a field of study subjects the results from an experiment into a test, they can give their own verdict as to wether such findings are consistent and reliable with the problem in view.

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3 years ago

Give the percent yield when 162.8 g of CO2 are formed from the reaction of excess amount of C8H18 and with 218.0 grams of O2. (2

katen-ka-za [31]

Percent yield is 23.11 % when 162.8 g of CO2 are formed from the reaction of excess amount of C8H18 and with 218.0 grams of O2.

Explanation:

Balanced equation for the chemical reaction:

2C8H18 + 25O2 → 16CO2 + 18H2O

data given:

CO2 formed (actual yield) = 162.8 grams

mass of oxygen = 218 grams

16 moles of CO2 formed when 5 moles of oxygen reacted

3.6 moles of CO2 formed when 6.8 moles of oxygen reacted.

In the reaction 16 moles of CO2 will have 44.01 x 16

theoretical yield of CO2 = 704.16 grams

percent yield = $\frac{actual yield}{theoritical yield}$ x100

putting the values in the above equation

percent yield = $\frac{162.8}{704.16}$ x 100

= 0.23 x 100

= 23.11 %

Percent yield is 23.11 %.

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4 years ago

Give the systematic (IUPAC) names for these molecules. This molecule has the condensed formula C H 3 C H 2 C O O (C 6 H 5). C 6

scoundrel [369]

Answer:

The IUPAC name of the given compound is - Methyl - 4 - methylpentanoate

Explanation:

IUPAC name of the compound helps to determine the correct structure of the compound which can be used universally in order to avoid any confusion or misinterpretation.

$CH_3CH_2COO(C_6H_5)$

The IUPAC name of the given compound is - phenyl propanoate.

$CH_3OCOCH_2CH_2CH(CH_3)_2$

The IUPAC name of the given compound is - Methyl - 4 - methylpentanoate.

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3 years ago

Convert 123 in scientific notation

dalvyx [7]

✡ Answer: 1.23*10^2 ✡

- - Add a decimal at the end (to the right) and count till you get to the first number.
So now you have 1.23

- - Now you always want to times it by 10 to the power of how many times you moved it over, in this case, 2

Final answer: 1.23*10^2

✡Hope this helps✡

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3 years ago

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