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klasskru [66]
3 years ago
6

1. Aluminium reacts with chlorine to produce aluminium chloride. The balanced reaction is:

Chemistry
1 answer:
Anton [14]3 years ago
6 0

Answer:

Explanation:

es

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All cells _____.
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The answer is the fourth choice, or Have membrane-bound organelles. Hope this helps you!

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-Belle
7 0
3 years ago
The mass of a proton is 1.00728 amu andthat of a neutron is 1.00867 amu. What is the binding energy pernucleon (in J) of a Co nu
andreyandreev [35.5K]

Answer:

The binding energy per nucleon = 1.368*10^-12  (option D)

Explanation:

<u>Step 1:</u> Data given

The mass of a proton is 1.00728 amu

The mass of a neutron is 1.00867 amu

The mass of a cobalt-60 nucleus is59.9338 amu

Step 2: Calculate binding energy

The mass defect = the difference between the mass of a nucleus and the total mass of its constituent particles.

Cobalt60 has 27 protons and 33 neutrons.

The mass of 27 protons = 27*1.00728 u = 27.19656 u

The mass of 33 neutrons = 33*1.00867 u = 33.28611 u

Total mass of protons + neutrons = 27.19656 u + 33.28611 u = 60.48267 u

Mass of a cobalt60 nucleus = 59.9338 amu

Mass defect = Δm = 0.54887 u

ΔE =c²*Δm

ΔE = (3.00 *10^8 m/s)² *(0.54887 amu))*(1.00 g/ 6.02 *10^23 amu)*(1kg/1000g)

Step 3: Calculate binding energy per nucleon

ΔE = 8.21 * 10^-11 J

8.21* 10^-11 J / 59.9338 = 1.368 *10^-12

The binding energy per nucleon = 1.368*10^-12  (option D)

3 0
3 years ago
When elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that
guapka [62]
True i really don’t feel like giving an explanation but trust me it’s trye
5 0
2 years ago
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7 0
3 years ago
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What must happen in order for water to change state?
malfutka [58]

Answer:

B

Explanation:

if it releases energy it becomes a solid(Solid)

if it absorbs energy it becomes a gas(Water Vapor)

4 0
3 years ago
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