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dmitriy555 [2]
3 years ago
10

The distance from one place to another

Chemistry
2 answers:
Furkat [3]3 years ago
7 0
The answer is possibly the length
Rzqust [24]3 years ago
6 0
Its just called distance
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Consider four elements from Group 17: fluorine in the second period, chlorine in the third period, bromine in the fourth period,
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Answer:

A. Fluorine

Explanation:

I got it right on Plato.

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Balance this chemical equation.
Vadim26 [7]

Answer:

Explanation:

Reaction Given

    NaHCO₃ (s) + HC₂H₃O₂ (aq) -------> CO₂ (g) + H₂O (l) + NaC₂H₃O₂ (aq)

Balance Equation = ?

Solution:

Balance Chemical Equation:

A balanced chemical equation is that in which the number of the reactant atoms equal to the number of the product atom.

For example if the carbon at the reactant side is 3, the number of carbon must be 3 on the product side.

Check the chemical equation and count the number of atoms at the reactant side and product side.

If the number of atoms of the reactants equal to the number of atoms of products then the reaction is balanced but if not equal then reaction is not balanced

Balancing is an trial and error process to get a balance reaction.

First we count the number of atoms of reactant and product

Number of atoms of Reactant:

Na = 1

O = 5

H = 5

C = 3

Number of atoms of Product:

Na = 1

O = 5

H = 5

C = 3

So this a balance equation as the atoms of the reactant atom equal to the number of the product atoms.

Na atom is 1 on both reactant and product side

Oxygen atoms are 5 on reactant and 5 on product side

hydrogen atoms are 5 on reactant and 5 on product side

Carbon atoms are 3 on reactant and 3 on product side

So all the compounds in the reaction have 1 as its coefficient in the blanks

<u />

<u>1   </u>NaHCO₃ (s) +  <u>1  </u>HC₂H₃O₂ (aq) -----> <u>1  </u>CO₂ (g) + <u>1  </u>H₂O (l) + <u>1  Na</u>C₂H₃O₂ (aq)

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3 years ago
What type of compound is CaBr2 ?
kirza4 [7]

Answer:

Calcium bromatum

Explanation:

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How can helium exist in three different forms
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Explanation:

Helium exists in three different forms due to the phenomenon of isotopy. Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their nuclei.

  • The atoms of these elements are called isotopes.
  • This is why Helium can exist in three different forms.
  • Isotopes have the same electronic configuration but with the same chemical properties.

Learn more:

isotopes brainly.com/question/1915462

Isotopy brainly.com/question/2593342

#learnwithBrainly

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