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4 years ago

Describe, in terms of valence electrons, how the chemical bonds form in the substance

Chemistry

1 answer:

Talja [164]4 years ago

7 0

Based on the picture, the way that chemical bonds form in the substance is :
K loses an electron and Br gains an electron.
This created difference in charges, which create attraction

hope this helps

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FREE BRAINIEST WHO WANTS IT?!!!

tia_tia [17]

Ngl, I really want it! But how do I know you're not scamming?

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3 years ago

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Given the density of iron (Fe) is 7.87 g/cm3, determine the mass of iron (in grams) in a rectangle block with the dimensions of

guapka [62]

Answer:

$m=14,105.71 g Fe$

Explanation:

Hello,

In this case, the first step is to compute the volume of the block considering the length, height and width:

$V=L \times W \times H =12.5 in\times 3.50 in \times 2.50 in =109.375 in^3$

Then, we compute the volume in cubic centimetres:

$V=109.375in^3\times \frac{16.3871 cm^3}{1in^3} =1792.34cm^3$

Finally, as the density is given by:

$\rho =\frac{m}{V}$

We solve for the mass:

$m=\rho \times V= 7.87\frac{g}{cm^3} \times 1792.34 cm^3\\\\m=14,105.71 g Fe$

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3 years ago

Zootopia movie: How does Judy Hopps discover Nick Wolf’s true intentions/con?

pochemuha

Answer:

Judy is determined to make the world a better place while breaking preconceptions about other species. Nick views Judy as a nuisance at first. He also mentions having noticed her canister of Fox repellent when they first met, leading him to believe her to be a bigoted individual, which he detests.

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2 years ago

Consider again the thermite reaction. If 0.0257 g Al react completely, what mass of Fe forms? Use the periodic table to find mol

maxonik [38]

The mass of Fe that is formed is 0.0532 grams

Explanation

Fe2O3 + 2 Al → Al2O3 + 2 Fe

Step 1: find the moles of Al

moles = mass/molar mass

from periodic table the molar mass of Al= 27 g/mol

moles = 0.0257g /27 g/mol =9.5 x10^-4 moles of Al

Step 2: use the mole ratio to determine the moles of Fe

the moles ratio of Al:Fe is 2:2= 1:1

therefore the moles of Fe is also = 9.5 x10 ^-4 moles

Step 3: find the mass of Fe

mass= moles x molar mass of Fe

from periodic table the molar mass of Fe= 56 g/mol

mass= 9.5 x10 ^-4 moles x 56 g/mol =0.0532 grams

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3 years ago

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A water molecule has bonds with an unequal charge distribution. Choose all the statements that apply to water.

rodikova [14]

Water is a polar covalent molecule.
Water is a bent (bent shape) molecule.

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