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OLEGan [10]
3 years ago
14

Carbon returns to the atmosphere in the form of Co2 when _____

Chemistry
1 answer:
evablogger [386]3 years ago
8 0
The process of respration happens.carbon moves from fossil fuels to the atmosphere when fuels are burned.when humans burn fossil fuels to power factories, power plants,ect.basically it enters as carbon dioxide gas.btw ask you teacher of this is correct.I don't want you to get it wrong.
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In the lewis structure of ch3oh, how many bonding pairs of electrons are there?
zysi [14]
Answer:
            There are five <span>bonding pairs of electrons in Methanol.

Explanation:
                   Those electron pairs which are being shared between two atoms in molecule are called as bonding pair electrons. While, those electron pairs which are not involved in bond formation and are not shared between two atoms are called as Non-Bonding electron pairs.
                   In molecule of Methanol as shown below, it can be seen that carbon atom is forming four bonds with three hydrogen atoms and one oxygen atom by sharing four electron pairs and oxygen is forming two bonds, one with carbon atom and one with hydrogen atom. There are two lone pair of electrons present on oxygen atom which are not taking part in and formation.</span>

8 0
4 years ago
What is the mass of 6.02 x 1022 atoms of Xenon? HELP!!!!!
il63 [147K]
So 6.02*10^22 is avogadro constant, which is the amount of atoms in one mole. If you look Xenon up in the periodic table you will find it's mass given <span>131,293, which is grams per 1 mole. 

</span>
8 0
3 years ago
A molecule contains four bonded pairs of electrons and zero lone pairs. What is the name of the molecular geometry?
vagabundo [1.1K]

Answer: Option (d) is the correct answer.

Explanation:

A tetarhedral geometry is the geometry which includes four atoms bonded to the central atom and it does not contain any lone pair of electron.

For example,  CH_{4} has tetrahedral geometry.

Thus, we can conclude that a molecule which contains four bonded pairs of electrons and zero lone pairs. The name of the molecular geometry is tetrahedral.

4 0
3 years ago
PLS HELP I GIVE BRANLIEST !!!
yarga [219]

Explanation:

D. The total mass of the reactants equals the total mass of the

products.

6 0
3 years ago
If 75.8 grams of Ca(OH)2 were dissolved in enough water to make a solution with a total volume of 1.20 liters, what would the mo
schepotkina [342]
The molarity of the solution is calculated by dividing the number of moles of the solute, in moles, by the total volume of the solution, in liters. 

The molar mass of calcium hydroxide, Ca(OH)2 is calculated below.

     m = molar mass Ca + 2(molar mass O) + 2(molar mass H)

Substituting,
     m = 40 g/mol + 2(16 g/mol) + 2(1 g/mol)
      m = 74 g/mol

To get the number of moles Ca(OH)2 in 75.8 grams,
     n = (75.8 grams)(1 / 74 g/mol) = 1.024 moles

The molarity, M, is therefore,
           M = (1.024 moles Ca(OH)2) / (1.2 L)
               M = 0.854 M

<em>Answer: 0.854 M</em>
7 0
3 years ago
Read 2 more answers
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