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3 years ago

15

Why is helium nucleus containing no neutrons is likely to be unstable

1 answer:

jolli1 [7]3 years ago

8 0

<span>A Helium nucleus is likely to be unstable if it has no neutrons because the remaining protons will repel electromagnetically and basically cause the atom to fall apart. The neutrons could have helped in holding everything together, and not make the protons repel.</span>

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How many atoms are in 35.1 g of sodium chloride (NaCl) ?

hoa [83]

Answer:

I believe that there are 70.2

Explanation:

There are 2 atoms in sodium chloride so I x 35.1 by 2 and got 70.2

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3 years ago

Give the formula for the alkane containing 500 carbons.

Fiesta28 [93]

Answer:

1002

Explanation:

$C_{2n}$ $H_{2n+2}$

500 multiply by 2 add 2

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3 years ago

How many grams of chlorine are required in order to consume 100g of sodium chloride?

11111nata11111 [884]

Answer:

92.1 g

Explanation:

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3 years ago

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Calculate the Density of the substances below to determine if they will float or sink in water.

Reil [10]

Explanation:

If the density of the object is more than that of water, it will sink. Otherwise it will float. The density of water is 1 g/mL.

Substance 1,

Mass, m = 450 g, Volume, V = 90 mL

Density = mass/volume

So,

$d_1=\dfrac{450}{90}\\\\=5\ g/mL$

It will sink.

Substance 2,

Mass, m = 35 g, Volume, V = 70 mL

Density = mass/volume

So,

$d_2=\dfrac{35}{70}\\\\=0.5\ g/mL$

It will float.

Substance 3,

Mass, m = 24 g, Volume, V = 12 mL

Density = mass/volume

So,

$d_3=\dfrac{24}{12}\\\\=2\ g/mL$

It will sink.

7 0

3 years ago

Velocity and speed are both measurements of how fast something is moving however velocity is different from speed because

Novosadov [1.4K]

Im pretty sure the answer is d

6 0

3 years ago

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