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Alex
3 years ago
13

Write a one page letter to your lil cousin explaining how small an atom is

Chemistry
1 answer:
Ganezh [65]3 years ago
8 0
Ok....... why don’t u do
It
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"A nuclear reaction of significant historical note occurred in 1932, when a beryllium target was bombarded with alpha particles.
rodikova [14]

Answer: _{0}^{1}\textrm{e} is missing

Explanation:

In a nuclear reaction, the total mass and total atomic number remains the same.

For the given reaction:

^{4}_{2}\textrm{He}+^9_4\textrm{Be}\rightarrow ^{12}_{6}\textrm{C}+^A_Z\textrm{X}

To calculate A:

Total mass on reactant side = total mass on product side

4 + 9 = 12 + A

A = 1

To calculate Z:

Total atomic number on reactant side = total atomic number on product side

2 + 4 = 6 + Z

Z = 0

^{4}_{2}\textrm{He}+^9_4\textrm{Be}\rightarrow ^{12}_{6}\textrm{C}+^1_0\textrm{e}

Hence, missing is _{0}^{1}\textrm{e}.

8 0
3 years ago
A galaxy type that is spherical or oval in shape​
Alik [6]

We are not able to know that the galaxy have oval or sperical shape because we have not such modern technology to look over it

3 0
3 years ago
Read 2 more answers
A sample of water (88 grams) had a temperature change of 6.0 ℃. What was the heat change of this sample? (q = m c ΔT, c = 4.18 J
jeka94

Answer:

Q=2209J

Explanation:

Hello!

In this case, since the heat involved during a heating process is computed in terms of mass, specific heat and temperature change as shown below:

Q=mC\Delta T

Thus, since the heated mass of water was 88 g, the specific heat of water is 4.184 J/g°C and the temperature change is 6.0 °C, we can compute the heat as shown below:

Q=88g*4.184\frac{J}{g\°C}*6.0\°C \\\\Q=2209J

Best regards!

7 0
3 years ago
What does it mean when a reaction has a negative amount of Kj
makvit [3.9K]

Answer:

heat is released in going from reactants to products

Explanation:

hope this helps

3 0
3 years ago
Plz help ASAP plz and thx if u help
olganol [36]

Answer:

3.     c

4.     d

5.     c

Explanation:

5 0
3 years ago
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