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Leona [35]
2 years ago
12

calculate no. of molecules in a spherical drop of water... radius = 0.1 mm and density of water = 1g/cm²​

Chemistry
1 answer:
SVEN [57.7K]2 years ago
8 0

Answer:

1.49X10^20

Explanation:

hope this helps (´・ω・`)

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Which of the following is NOT a way carbon dioxide returns to the atmosphere?
yawa3891 [41]

Answer:

emissions by factories is the answer

Explanation:

Factories produce air pollution which is polluted air, the other options

decay of organisms, photosynthesis (convert light energy into chemical energy - and returns CO2), and cellular respiration are all of the ways carbon dioxide returns to the atmosphere.

Hope this helped! Have a nice day, be safe and healthy :)

4 0
3 years ago
Citric acid is a naturally occurring compound. what orbitals are used to form each indicated bond? be sure to answer all parts.2
Rina8888 [55]

Answer : The orbitals that are used to form each indicated bond in citric acid is given below as per the attachment.

Answer 1) σ Bond a : C has SP^{2}  O has SP^{2} .

Explanation : The orbitals of oxygen and carbon which are involved in SP^{2} hybridization to form sigma bonds. This is observed at 'a' position in the citric acid molecule.

Answer 2) π Bond a: C has π orbitals and  O also has π  orbitals.

Explanation : The pi-bond at the 'a'position has carbon and oxygen atoms which undergoes pi-bond formation. And has pi orbitals of oxygen and carbon involved in the bonding process.

Answer 3) Bond b:  O SP^{3}  H has only S orbital involved in bonding.

Explanation : The bonding at 'b' position involves oxygen SP^{3} hydrogen atoms in it. It has SP^{3} hybridized orbitals and S orbital of hydrogen involved in the bonding.

Answer 4) Bond c:   C is SP^{3}  O is also SP^{3}

Explanation : The bonding involved at 'c' position has carbon and oxygen atoms involved in it. Both the atoms involves the orbitals of SP^{3} hybridized bonds.

Answer 5) Bond d:   C atom has SP^{3}  C atom has SP^{3}

Explanation : At the position of 'd' the bonding between two carbon atoms is found to be SP^{3}. Therefore, the orbitals that undergo SP^{3} hybridization are SP^{3}.

Answer 6) Bond e : C1 containing O SP^{2}    

C2 is SP^{3}

Explanation : The carbon atom which contains oxygen along with a double bond has SP^{2} hybridized orbitals involved in the bonding process; whereas the carbon at C2 has SP^{3} hybridized orbitals involved during the bonding. This is for the 'e' position.

7 0
3 years ago
Which three of the following indicate that a solid is being formed? 1) formation of a precipitate 2) formation of bubbles 3) for
kiruha [24]

Answer:

Formation of a precipitate

Explanation:

  • A precipitate is a compound in solid-state that is formed when two soluble or aqueous compounds or salts react during a precipitation reaction.
  • Precipitation reaction involves a reaction between two soluble salts or compounds to form a precipitate and an aqueous compound.
  • For instance, a reaction between potassium chloride and silver nitrate is a precipitation reaction.

    KCl(aq) + AgNO₃(aq) → KNO₃(aq) + AgCl(s)

  • AgCl is the precipitate.
  • All the other choices are indicators of a chemical reaction or a chemical change.
3 0
3 years ago
Read 2 more answers
!Urgent!
kogti [31]

This question was already answered here's the link

brainly.com/question/2023746

6 0
2 years ago
Why do we ignore noble gases usually when we discuss electronegativity values?
RSB [31]
Because they don’t have charges
3 0
3 years ago
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