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jarptica [38.1K]
3 years ago
14

The number of positive charges in the nucleus of an atom is equal to: its mass number its atomic number Avogadro's number its at

omic mass
Chemistry
1 answer:
makkiz [27]3 years ago
6 0

Answer:

its atomic number

Explanation:

the mass number/atomic mass is how many protons and neutrons are combined in an element. But, the atomic number is just protons.

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in an experiment 3.5g of element A reacted with 4.0g of element G to form a compound Calculate the empirical formula for this co
kolezko [41]

Additional information

Relative atomic mass(Ar) : A=7, G=16

The empirical formula : A₂G

<h3>Further explanation</h3>

Given

3.5g of element A

4.0g of element G

Required

the empirical formula for this compound

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.

The empirical formula also shows the simplest mole ratio of the constituent elements of the compound

mol of element A :

\tt mol=\dfrac{mass}{Ar}\\\\mol=\dfrac{3.5}{7}=0.5

mol of element G :

\tt mol=\dfrac{4}{16}=0.25

mol ratio A : G = 0.5 : 0.25 = 2 : 1

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2 years ago
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Explanation:

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3 years ago
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Which will dissolve faster in water rock salt or granulated salt
Sladkaya [172]

Answer:

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Explanation:

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why do liquids flow? the particles are tightly packed together the particles do not move the particles vibrate the particles are
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2 years ago
8. Which is a nonrenewable resource?
butalik [34]

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Explanation:

Once it's all been mined, there's no more. It's not like we grow it.

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