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saw5 [17]
3 years ago
13

48 When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases(

1) an alpha particle (3) a neutron(2) a beta particle (4) a positron
Chemistry
1 answer:
Crank3 years ago
4 0
(1) a beta particle is your answer. Na-24 decays through beta decay, turning a neutron into a proton, electron (beta particle), and an neutrino.
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Plesse help asap!!!​
Naily [24]

Answer:

4.4×10² cm³

Explanation:

From the question given above, the following data were obtained:

Diameter (d) = 68.3 mm

Height (h) = 0.120 m

Volume (V) =?

Next, we shall convert the diameter (i.e 68.3 mm) to cm.

This can be obtained as follow:

10 mm = 1 cm

Therefore

68.3 mm = 68.3 mm / 10 mm × 1 cm

68.3 mm = 6.83 cm

Therefore, the diameter 68.3 mm is equivalent 6.83 cm.

Next, we shall convert the height (i.e 0.120 m) to cm. This can be obtained as follow:

1 m = 100 cm

Therefore,

0.120 m = 0.120 m/ 1 m × 100 cm

0.120 m = 12 cm

Therefore, the height 0.120 m is equivalent 12 cm.

Next, we shall determine the radius of the cylinder. This can be obtained as follow:

Radius (r) is simply half of a diameter i.e

Radius (r) = Diameter (d) /2

r = d/2

Diameter (d) = 6.83 cm

Radius (r) =?

r = d/2

r = 6.83/2

r = 3.415 cm

Finally, we shall determine the volume of the cylinder as follow:

Radius (r) = 3.415 cm

Height (h) = 12 cm

Volume (V) =?

Pi (π) = 3.14

V = πr²h

V = 3.14 × (3.415) ² × 12

V = 440 cm³

V = 4.4×10² cm³

Therefore, the volume of the cylinder is 4.4×10² cm³

8 0
3 years ago
Write the symbol for the missing reactant.
Tcecarenko [31]

There is a shortcut trick while doing such fill in the blanks of nuclear reactions of hydrogen and helium

Let a,b,care elements of set N

\\ \rm\Rrightarrow {}^{a}_1 H+{}^b_1H={}^c_2He\dots

  • Here c must be a+b+1

Now

for our question

  • c=4
  • a=3

Hence b=4-3+1=1+1=2

So

The missing place should b e deuterium of heavy water

In nuclear reactions energy is released so it's mentioned on product side not reactant side

5 0
2 years ago
I need some thanks and friend darn c...o...v...i...d
Amanda [17]
Ima be ur friend



Watchu up to









5 0
3 years ago
Difficulty(Level:1)
Ostrovityanka [42]

Answer:

I say the last option

Explanation:

I hope this help let me know if you have any questions

7 0
3 years ago
The word carbohydrate is derived from two words - carbon hydrate (water joined to another material). explain why this term in pa
Temka [501]

he chemical formula for a carbohydrate is C6 H12 O6  

you have your 6 carbons (the carbo-) and you have 6 water molules (-hydrate). H12O6 means that for every one oxygen there is two hydrogens, which is the set up of a water molecule.  

C+C+C+C+C+C+H2O+H2O+H2O+H2O+H2O+H2O  

=C6 H12 O6  

6 0
3 years ago
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