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3 years ago

Which statement below best describes the relationship of the reaction below?

Chemistry

2 answers:

Citrus2011 [14]3 years ago

7 0

Answer:

It is C

Explanation:

A) does not make sense because we obviously see that it has 2 moles of AB (right side of equation) for every 3 moles of A (left side of equation). We do not have data to prove B) is correct. It would require data actually. We also do not have data to prove that D is true either. But, we do know based on the equation that "for every two AB produced, teh reaction requires three A."

timurjin [86]3 years ago

3 0

For every two AB produced, the reaction requires three A

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Answer:

Two, KCl and PbCl₂.

Explanation:

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3 years ago

A student drank a bottle of water during a car ride up a mountain. At the top of the mountain, the student capped the plastic bo

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It might cave in on itself or collapse because of the change in pressure.

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4 years ago

Draw the structure of 4-methylcycloheptanol.

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3 years ago

How much energy must be supplied to break a single 21Ne nucleus into separated protons and neutrons if the nucleus has a mass of

love history [14]

Answer:

1)There is 2.68 * 10^-11 J of energy needed

2) The nuclear binding energy for 1 mol of Ne is 1.6 *10^13 J/mol

Explanation:

Step 1: Data given

The nucleus of a21Ne atom has a amass of 20.98846 amu.

Step 2: Calculate number of protons and neutrons

The number of electrons and protons in an 21Ne atom = 10

The number of neutrons = 21 -10 =11

Step 3: mass of the atom

Mass of a proton = 1.00727647 u

Mass of a neutron = 1.0086649 u

The mass of the atom = mass of all neutrons + mass of protons

Mass of atom = 11*1.0086649 + 10*1.00727647 = 21.1680786 amu

Step 4: Calculate change of mass

The change in mass = Mass of atom - mass of neon

Δmass = 21.1680786 - 20.98846

Δmass = 0.1796186

Step 5: Calculate mass for a single nucleus

The change of mass for a single nucleus is = Δmass / number of avogadro

Δmass of nucleus = 0.1796186 / 6.022*10^23

Δmass of nucleus =2.98 * 10^-25 grams = 2.98 * 10^-28 kg

Step 6: Calculate energy to break a Ne nucleus

Calculate the amount of energy to break a Ne nucleus

ΔEnucleus = Δmass of nucleus * c²

⇒ with c = 2.9979 *10^8 m/s

ΔEnucleus = 2.98 * 10^-28 kg * (2.9979*10^8)² = 2.68 * 10^-11 J

What is the nuclear binding energy for 1 mol of Ne?

ΔE= ΔEnucleus * number of avogadro

ΔE= 2.68 * 10^-11 J * 6.022*10^23

ΔE= 1.6 *10^13 J/mol

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3 years ago

WILL GIVE BRAINLIEST NO FAKE ANSWERS PLEASE!

AleksAgata [21]

Answer:

A) (3.2g)

Explanation:

Did you reposed this? Because I remember answering this

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3 years ago

Read 2 more answers