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joja [24]
3 years ago
13

Which of the following is a true statement about science?

Chemistry
2 answers:
masya89 [10]3 years ago
7 0
D. all of these are true statements
Papessa [141]3 years ago
4 0
D. All of the answers are true
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4. Rank the listed elements from largest electronegativity at the top, to smallest electronegativity at
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1. Chlorine
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2 years ago
Chlorine is a toxic, corrosive, reactive gas. Which representation (structural formula, electron dot structure, or three-dimensi
DanielleElmas [232]

electron dot structure

Explanation:

Chemical reactions are driven by transfer or sharing of electrons between two or more atoms. To show a specie that is reactive, a sound knowledge of the distribution of electrons in the atom is necessary.

  • The electron dot structure shows only chemical symbol of the element surrounded by dots which represents the valence electrons.
  • The chemical symbol represents the nucleus and all electrons except the valence ones.
  • The dots arranged on the four sides are called lone pairs. Those that are unpaired are called odd electrons.
  • Chlorine has 7 valence electrons in its outermost shell.
  • It is made up of 3 lone pairs and 1 odd pair of electron.
  • The odd pair accounts for the reason why chlorine is very reactive.
  • It will only require just one electron to join the odd pair so as to complete the octet and be like the noble gases.

Learn more:

lewis dot structure brainly.com/question/5248264

resonance brainly.com/question/6786947

#learnwithBrainly

6 0
3 years ago
Write a balanced half-reaction for the reduction of gaseous nitrogen N2 to aqueous hydrazine N2H4 in acidic aqueous solution. Be
Kaylis [27]

Answer:

Explanation:

N₂ (g ) + 4H⁺( aq ) + 4e⁻ = N₂H₄ ( aq )

H⁺ ion comes from acidic medium . 4 positive charge on proton is balanced by 4 electron to make left hand side neutral because right hand side is neutral .

6 0
2 years ago
Which of the following statements is true about fungi? (1 point)
natulia [17]
I'm not sure, but I believe the correct answer is C.
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3 years ago
Balance this chemical equations
Lisa [10]

Answer:

Your awnser is correct

Explanation:

Cu + 2HCl ---------> CuCl2 + H2

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