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GaryK [48]
3 years ago
6

To arrive at the number of hydrogen atoms, What can be said about the relationship between the number of hydrogen atoms and the

number of carbon atoms in an alkane or alcohol
Chemistry
1 answer:
Semenov [28]3 years ago
6 0

Answer:

nothing shsheysyeggehssl

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During the formation of a chemical bond between two hydrogen atoms, which of the following statements is always true?
Wewaii [24]

A) Energy is released during the formation of the bond.

Explanation:

During the formation of a chemical bonds between two hydrogen atoms, energy is always released during the formation of this bond type.

Bond formation process is usually exothermic and energy is released during the formation of the bond.

  • Bond breaking process is an endothermic process in which energy is absorbed from the surrounding.
  • Whenever a bond is broken, the bond energy value is positive but when a bond is formed, the bond energy value is given a negative sign.

For a bond formation process in which hydrogen atoms are bonded covalently, energy is usually released.

Learn more:

Enthalpy changes brainly.com/question/10567109

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3 years ago
Stoichiometric coefficients indicate the ratio between ________of given substances in a chemical reaction
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Answer:

b

Explanation:

7 0
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charcoal removes fine particulates, as well as lead, mercury, copper, and chlorine from water through a separation process calle
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Absorption distillation floatation filtration
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3 years ago
If 2 CH3OH + 3 O2 -> 2CO2 + 4 H2O was carried out in the laboratory and 219 g of water was produced, what would the percent y
ANEK [815]

Answer:

Percent yield = 84.5 %

Explanation:

Given data:

Mass of methanol = 229 g

Actual yield of water = 219 g

Percent yield of water = ?

Solution:

Chemical equation:

2CH₃OH + 3O₂  →  2CO₂  + 4H₂O

Number of moles of methanol:

Number of moles = mass/ molar mass

Number of moles = 229 g/ 32 g/mol

Number of moles = 7.2 mol

Now we will compare the moles of water with methanol.

                        CH₃OH         :            H₂O

                            2               :               4

                           7.2             :           4/2×7.2 = 14.4 mol

Mass of water:

Mass = number of moles × molae mass

Mass = 14.4 mol × 18 g/mol

Mass = 259.2 g

Percent yield:

Percent yield = actual yield / theoretical yield × 100

Percent yield = 219 g / 259.2 g × 100

Percent yield = 84.5 %

7 0
3 years ago
How can you identify an element that is a metalloid?
Dominik [7]
On the periodic table, the elements colored yellow, which generally border the stair -step line , are considered to be metalloids
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3 years ago
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