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3 years ago

The total number of electrons in the outer shell of a sodium atom is?A. 1B.2C.8D.18

Chemistry

1 answer:

mrs_skeptik [129]3 years ago

7 0

Answer:

Explanation:

outershell atoms of an element are also known as valency of that element

so the valency and number of elctron in the outershell of a sodium atom is +1.

hope this will help

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How to calculate density (what’s the formula) density=_ divided by _

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Answer:

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Explanation:

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3 years ago

50.0 g of NaNO3 are dissolved into enough water to make 250 mL of solution. What is the molarity of this solution?

d1i1m1o1n [39]

Answer:

2.35 M

Explanation:

Molarity is mol/L of solution. We have to convert the g to mol and the mL to L. G to mol uses the molar mass of the compound. The molar mass of NaNO₃ is 85.00g/mol.

$50.0gNaNO3*\frac{1molNaNO3}{85.00gNaNO3} = 0.588molNaNO3$

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3 years ago

Which substance contains only 1 kind of atom

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Elements are substances that contain only 1 kind of atom.

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3 years ago

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Fudgin [204]

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3 years ago

Reading the above graph to the nearest tenth of a milliliter, what is the volume of sodium hydroxide at the equivalence point?

Vlada [557]

Answer:

The volume of sodium hydroxide at the equivalence point is:

14.9 mL of sodium hydroxide.

Explanation:

The equivalence point occurs when, in this case, the HCl is completely neutralized with the solution of NaOH, how you can see this doesn't occur in the last point but occurs in the nineteenth point, where the pH is no more acid (below to 7) but is 11 approximately, then you must see in the X-axis from this point and you can see the volume is almost 15, by this reason I calculate the valor of 14.9 milliliters.

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3 years ago

The total number of electrons in the outer shell of a sodium atom is?A. 1B.2C.8D.18​

The total number of electrons in the outer shell of a sodium atom is?A. 1B.2C.8D.18