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pogonyaev
3 years ago
6

Consider the unbalanced chemical equation HBr + B = BBr3 + H2. When

Chemistry
1 answer:
Vitek1552 [10]3 years ago
4 0

Answer:

B and BBr3

Explanation:

1) 3HBr + B = BBr3 + H2 (double all equation because H2)

2) 6HBr + <em>2B </em>= <em>2BBr3</em> + 3H2

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assuming oxygen behaves like an ideal gas, what volume in liters would 3.50 moles of oxygen gas occupy at STP?
astra-53 [7]

Answer:

78.4L

Explanation:

1 mole of any gas is found to occupy 22.4L at stp. This also indicates that 1mole of oxygen occupy 22.4L.

Therefore,

3.50 moles of oxygen Will occupy = 3.5x22.4 = 78.4L

6 0
3 years ago
Please help! Will mark Brainliest!
sergey [27]

C) H2O has the strongest dipole interactions

Explanation:

The dipole interactions are the interactions that occur between polar molecules.

Polar molecules form when the atoms forming the molecule have different electronegativity, therefore one of the atom in the molecule attract the shared electrons more towards itself; as a result, the molecule ends up having a region which is slightly negatively charged and a region slightly positively charged.

In this problem, we are comparing 4 different molecules. We observe that:

H2: this molecule is formed by 2 atoms of hydrogen - since the two atoms are identical, electrons are equally shared between the two atoms, so this molecule is not polar

O2: this molecule is formed by 2 identical atoms of oxygen, so it is not polar, for the same reason as H2

CH4: this molecule consists of a carbon atom surrounded by 4 hydrogen atoms - since this molecule has a symmetric structure, the charge is balanced, therefore this molecule is not polar

H2O (water): the oxygen atom in the water molecule is more electronegative than the hydrogens, therefore it tends to attract more the shared electrons - as a result, the molecule is polar.

Therefore, the correct answer is H2O.

Learn more about atoms and molecules:

brainly.com/question/2757829

#LearnwithBrainly

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What is the element Ar classified as in the periodic table?
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