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suter [353]
3 years ago
5

Please help with this chemistry question!

Chemistry
1 answer:
marusya05 [52]3 years ago
4 0

Hey there!

Compounds with ionic bonds have higher melting points because of the forces needed to break through the strong forces of attraction holding it together.

Compounds with covalent bonds have lower melting points because less energy is needed to break the weaker forces of attraction.  

So, your answer is C. Compound 1 is ionic, and compound 2 is molecular.

Hope this helps!

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How does the mass of an electron compare to the mass of a proton and a
tensa zangetsu [6.8K]

Answer:

C. The mass of an electron is much less than the mass of a proton or

a neutron.

Explanation:

When we compare the mass of an electron to that of proton or neutron, the mass of an electron is much less than the mass of a proton or a neutron.

Electrons are negatively charged particles in an atom

Protons are positively charged particles

Neutrons do not carry any charges.

  • The relative mass of an electron compared to that of a proton is \frac{1}{1840}
  • This is a very small value
  • Electrons generally have mass of 9.11 x 10⁻³¹kg
  • Protons weigh 1.67 x 10⁻²⁷kg
  • Neutrons weigh  1.68 x 10⁻²⁷kg

We can see that electrons have very small mass and this is why when calculating the mass of an atom, we use the sum of the number of protons and neutrons.

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3 years ago
I need help!! Following measurements
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5 0
2 years ago
Look at the following reaction. Select the option that best applies to the reaction.
tester [92]

Answer:

Two moles of KClO3 decompose to form 5 moles of product.

5 0
3 years ago
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Which statement is true? 1. The electronegativity of an atom depends only on the value of the ionization energy of the atom. 2.
lisov135 [29]

Answer:

5. Atoms with high ionization energies and high electron affinities have low electronegativities.

Explanation:

Ionization energy is the minimum amount of energy which is required to knock out the loosely bound valence electron from the isolated gaseous atom.

Electron affinity is the amount of energy released when an isolated gaseous atom accepts electron to form the corresponding anion.

Electronegativity is the tendency of an atom in a bond pair to attract the shared pair of electron towards itself.

Low ionization energies as well as low electron affinities mean the atom has low effective nuclear charge, which results in the less attraction of the valence electrons by the atom and thus, low electronegativity.

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3 years ago
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KatRina [158]

Density and pressure are directly proportional

\\ \rm\Rrightarrow \rho_1P_2=\rho_2P_1\\ \rm\Rrightarrow 0.680(8)=5\rho_2

\\ \rm\Rrightarrow 5.44=5\rho_2

\\ \rm\Rrightarrow \rho_2=1.088g/\ell

5 0
1 year ago
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