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tiny-mole [99]
3 years ago
13

The distance from the sun to earth would be ______.

Chemistry
2 answers:
Dvinal [7]3 years ago
8 0
C- more than one light year or B-exactly one light year
AysviL [449]3 years ago
5 0
The correct answer is A. Less than one light year.

A light year is the distance light travels in one year. We know that the sun's light takes approximately 8 minutes to reach the earth. 8 minutes is much less than a year, so the correct answer is A. 

Hope this helps =)
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An object with a density of 1.7 g/ml will float in water<br> True or False
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The answer is false because it is more than the density of water
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In which state of matter does an object have a fixed volume and a fixed shape?
sweet-ann [11.9K]

Explanation:

Solid state

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Identify the type of mixture formed when NH4NO3 is completely dissolved in water
Aloiza [94]
When solid ammonium nitrate is dissolved in water, it becomes completely dissociated and separates into the two ions, ammonium and nitrate. This forms a homogeneous solution, which is a mixture that has the same appearance and composition throughout. The reaction that takes place is shown below:

                 H₂O
NH₄NO₃₍s₎ --→   NH₄⁺ ₍aq₎ + NO₃⁻ ₍aq₎
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4 years ago
Use the reaction and bond information to answer the question. C2H6 → C2H4 H2 Reactant bond energies: H–C = 413 kJ/mol, C–C singl
nlexa [21]

The energy of the reactant has been higher than the energy of the product, Thus, the reaction has been an exothermic reaction.

Bond energy has been defined as the chemical energy possessed by the bonds in the chemical structure. The energy has been conserved in the chemical reaction.

<h3>Is the reaction endothermic or exothermic?</h3>

In the reaction in which bond energy of the reactant has been higher than the product, it has been an exothermic reaction.

In the reaction in which the bond energy of the product is higher than the reactant, it has been an endothermic reaction.

In the given reaction

\rm C_2H_6\;\rightarrow\;C_2H_4\;+\;H_2

The bond energies of reactant has been:

  • H-C bond = 413 kJ/mol
  • C-C bond = 347 kJ/mol

The total bond energy of the reactant has been:

\rm Reactant=6\;\times\;H-C\;bond\;+\;C-C\;bond \\Reactant=6\;\times\;413+347\;kJ/mol\\Reactant=2,825\;kJ/mol

The total bond energy of the reactant has been 2,825 kJ/mol.

The bond energies of product has been:

  • H-C = 413 kJ/mol
  • C=C = 614 kJ/mol
  • H-H = 432 kJ/mol

The total bond energy of the product has been:

\rm Product=4\;\times\;H-C\;bond\;+\;C=C\;bond\;+\;H-H\;bond\\Product=4\;\times\;413\;+\;614\;+\;432\;kJ/mol\\Product=2,698\;kJ/mol

The total bond energy of the product has been 2,698 kJ/mol.

The energy of the reactant has been higher than the energy of the product, Thus, the reaction has been an exothermic reaction, as energy can neither be created nor be destroyed. It has been conserved in the chemical reaction.

Learn more about exothermic reaction, here:

brainly.com/question/26203526

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3 years ago
Protons and neutrons strongly attract when they
lara31 [8.8K]

Answer:

are very close together.

Explanation:

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