Answer:
164
1st step we will write desperate molar mass of each element
Answer:
it a
Explanation:
You have to decide the grams you have or the grams you get once converted to moles by the atomic mass of the electron you find on the periodic table to get your amount of atoms…
For example…
65.3 grams of oxygen, you look at your periodic table to find the mass and you see it’s rounded to 16. So, you divide the 65.3 by 16, to get your atoms.
65.3/16 =4 atoms.
Answer:
La respuesta está en la explicación.
Explanation:
Las propiedades físicas son las visibles y medibles que no afectan químicamente la sustancia en cuestión. Las propiedades químicas hacen alusión a la reactividad de la sustancia:
Propiedades físicas ácido sulfúrico:
Líquido a temperatura ambiente.
Densidad: 1.83g/mL
Punto de fusión: 10°C
Punto de ebullición: 337°C
Índice de refracción: 1.397
Propiedades Químicas:
Ácido Fuerte.
Oxidante Fuerte.
Miscible con el agua reaccionando exotérmicamente.
A temperaturas > 30°C produce vapores azufrados.
Estable en concentraciones menores al 98%
The best choice that explains why atoms of carbon-14 (c-14) are unstable is there are 2 more protons than neutrons in the nucleus
<h3>
What is a stable atom?</h3>
An atom is said to be stable if the number of neutrons in the nucleus is greater than number of protons in the nucleus, because the the neutrons increases the nuclear force which keeps the atom stable.
Thus, the best choice that explains why atoms of carbon-14 (c-14) are unstable is there are 2 more protons than neutrons in the nucleus.
Learn more about stable atom here: brainly.com/question/1948879
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The wrong one is
<span>radioactive half-life is increased by heating the isotope.</span>