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Evgesh-ka [11]
3 years ago
7

How to calculate atomic mass?

Chemistry
2 answers:
forsale [732]3 years ago
8 0
Atomic Mass = Mass of Proton and Neutron
likoan [24]3 years ago
3 0
Setermine which isotopes are in the sample
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4NH3(g) + 3O2(g) --> 2N2(g) + 6H2O(l)
slamgirl [31]

Answer:

the right answer is : d

Explanation:

Because temperature is a cinetic factor.

3 0
3 years ago
How does a vase on a table overcome gravity? What would happen if you moved the vase off the table
NeTakaya

Answer:

A vase on a table overcomes gravity because of the upwards force of the table against it, which is stronger than the force of gravity. If you were to move the vase off the table it would no longer have anything stopping gravity from breaking it.

Explanation:

7 0
3 years ago
Helium decays to form lithium. Which equation correctly describes this decay?
GrogVix [38]

Answer:

⁴He₂ → ⁴Li₃ + ⁰e₋₁.

Explanation:

  • Helium decays with the release of an electron to form a lithium nucleus.
  • The number of nucleons is the same on both sides of the equation.
  • A neutron decays to form a proton with the release of an electron.
  • The atomic number increases from 2 to 3 while the atomic mass number stays the same at 4 nucleons.
8 0
3 years ago
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How are ions formed?
Fiesta28 [93]

Answer: Ions are formed by the addition of electrons to, or the removal of electrons from,

Explanation:

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True or False. Mixing of baking soda with sugar is a chemical change.<br>​
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The answer is -- False

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