2 years ago

What is the relationship between atomic number and an the atom's identity?

1 answer:

kramer2 years ago

3 0

The atomic number represents the number or protons in the nucleus of the atoms of an element. Every element has a specific number of protons, and only atoms of the same element have the same number of protons. For example, carbon, C, has an atomic number of 6. All atoms of carbon have 6 protons in their nuclei.

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PLSSS HELP. And there’s also at the bottom of the picture another option if u didn’t see it

WARRIOR [948]

Answer:

B. Gradualism

Explanation:

8 0

2 years ago

HELPP! pls

pshichka [43]

Answer:

"2.48 mole" of H₂ are formed. A further explanation is provided below.

Explanation:

The given values are:

Mole of Al,

= 3.22 mole

Mole of HBr,

= 4.96 mole

Now,

(a)

The number of mole of H₂ are:

⇒ $\frac{Mole \ of \ H_2}{3} =\frac{Mole \ of HBr}{6}$

or,

⇒ $Mole \ of \ H_2=\frac{1}{2}\times Mole \ of \ HBr$

⇒ $=\frac{1}{2}\times 4.96$

⇒ $=2.48 \ mole$

(b)

The limiting reactant is:

= $HBr$

(c)

The excess reactant is:

= $Al$

6 0

2 years ago

Which of these statements best describes the relationship between elements, compounds, and pure substances?

olchik [2.2K]

pure substances can be divided into two groups; elements and compounds

5 0

3 years ago

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RoseWind [281]

Answer: The answer is Parasite ma dude

Explanation:

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Hopes this helps

8 0

3 years ago

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Matter is composed of basic substances called what

Andreyy89

The basic substances are called elements

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3 years ago

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