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Arlecino [84]
3 years ago
7

If an atom, such as hydrogen, is able to form a covalent bond, describe what happens when the electron shells of two atoms overl

ap:
Chemistry
1 answer:
Ratling [72]3 years ago
7 0
If two shells overlap, they start to share electrons and thus, a bond is formed
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How many hydrogen atoms are in 5 molecules of isopropyl alcohol, c3h7o?
Oduvanchick [21]
1 molecule of C3H7O has 7 atoms of hydrogen (remember that the numbers to the right of each symbol ara subscripts and they indicate the number of atoms of that element in the molecular formula).

Then 5 molecules will have 5 * 7 atoms of hydrogen.

5 * 7 = 35.

Then the answer is that there are 35 atoms of hydrogen in 5 molecules of isopropyl alcohol, C3H7O
7 0
2 years ago
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4Fe +302–> 2Fe2O3 how many moles of Fe2O3 are produced when 0.27 moles of Fe is reacted?
Svet_ta [14]

Answer:

0.14 moles of Fe₂O₃

Explanation:

Given parameters:

Number of moles of Fe  = 0.27moles

Unknown:

Number of moles of Fe₂O₃ = ?

Solution:

To solve this problem, we are going to the work from the known specie to the unknown using their number of moles.

We first obtain the balanced equation of the reaction;

                 4Fe   +    3O₂     →    2Fe₂O₃

The equation above is balanced;

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                  0.27 moles of Fe will produce   \frac{0.27 x 2}{4}    = 0.14 moles of Fe₂O₃

4 0
3 years ago
Answer the following questions when 45mL sample of 0.175 M KOH is titrated with 0.200 M HI
Tanya [424]

Answer: Initial pH is 13.243

12.83

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Explanation:

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5 0
2 years ago
What is the volume of 1.9 moles of chlorine gas (Cl2) at 298 K and 1.3 atm?
kap26 [50]

Considering ideal gas behavior, the volume of 1 mol of gas at STP is 22.4 L; then the volume occupied by 1.9 moles is 1.9mol*22.4L/mol

The answer is 43 L if I am correct.

3 0
3 years ago
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When the law of conservation of energy is applied to heat, it is known as the _____ law of thermodynamics. a) zeroth b) first c)
Alex_Xolod [135]

Answer:

b     first

Explanation:

first law of thermodynamics: energy can neither be created or destroyed; however, when heat is added to a system, energy can be changed from one form to another.

3 0
3 years ago
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