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Vilka [71]
3 years ago
8

In a chemical reaction such as photosynthesis,are the substances present before the reaction​

Chemistry
1 answer:
sashaice [31]3 years ago
3 0

Yes

Explanation:

In a chemical reaction such as photosynthesis, substances are present before the reaction starts.

A chemical reaction is usually represented by simple chemical equations that shows the reactants and the products.

  • The reactants are the compounds combining together at the beginning of the reaction.
  • For photosynthesis, the reactants are carbon dioxide and water.
  • The products are the results obtained from the combining reactants.
  • In photosynthesis, they are glucose and oxygen gases.

Learn more:

Chemical reaction brainly.com/question/3953793

#learnwithBrainly

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maw [93]

Answer: The correct answer is "B" two bonding domains(or bonding pairs) or two non bonding domains(or lone pairs)

Explanation:

Molecular geometry/structure is a three dimensional shape of a molecule. It is basically an arrangement of atoms in a molecule.It is determined by the central atom, its surrounding atoms and electron pairs.According to VSEPR theory, there are 5 basic shapes of a molecule: linear, trigonal planar, tetrahedral, trigonal bipyramidal and octahedral.

A)Four bonding domains and zero non bonding domains: shape is tetrahedral and bond angle is 109.5°

B)Two bonding domains and two non bonding domains(lone pairs): shape is bent and bond angle is 104.5°

C)Three bonding domains and one non bonding domain: shape is trigonal pyramidal and bond angle is 107°

D)Two bonding domain and zero non bonding domain: shape is linear and bond angle is 107°

E)Two bonding domain and one non bonding domain: bent shape and bond angle is 120°

F)Three bonding domains and zero nonbonding domain: shape is trigonal planar and bond angle is 120°

Hence Two bonding domains and two non bonding domains have the smallest bond angle.

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sukhopar [10]

Answer:

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