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Ivenika [448]
3 years ago
7

What is 57.048 rounded to three significant figures?

Chemistry
1 answer:
AnnyKZ [126]3 years ago
4 0
57.0 is it rounded to three sig figs. You count three spaces then round from there, which would be the zero and you would round down because the four is there.
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Which of the following equations of CH4 + Cl2
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<h3>Further explanation  </h3>

Equalization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  

2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  

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Reaction

CH₄ + Cl₂⇒  CCl₄+ HCl

  • Give coefficient :

aCH₄ + bCl₂⇒  CCl₄+ cHCl

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The equation becomes :

CH₄ + 4Cl₂⇒  CCl₄+ 4HCl

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