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2 years ago

Which particle in an atom is lost or gained to make an ion

Chemistry

1 answer:

denpristay [2]2 years ago

7 0

An electron because that is the only part able to be lost or gained without nuclear action needed

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A molecule of glucose is comprised of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.

Tcecarenko [31]

B i just did the test

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2 years ago

I need part 1 and 2 please , just separate answers

Vladimir79 [104]

First, we have to remember the molarity formula:

$M=\text{ }\frac{moles\text{ of solute}}{L\text{ solution}}$

Part 1:

In this case, our solute is sodium nitrate (NaNO3), and we have the mass dissolved in water, then we have to convert grams to moles. For that, we need the molecular weight:

$M.W_{NaNO_3}=\text{ 23+14+16*3= 85 g/mol}$

Then, we calculate the moles present in the solution:

$3.976\text{ g NaNO}_3\text{ * }\frac{1\text{ mol}}{85\text{ g}}=\text{ 0.04678 mol NaNO}_3$

Now, we have the necessary data to calculate the molarity (with the solution volume of 200 mL):

$M=\frac{0.04678\text{ mol}}{200\text{ mL*}\frac{1\text{ L}}{1000\text{ mL}}}=\text{ 0.2339 M}$

The molarity of this solution equals 0.2339 M.

Part 2:

In this case, we have the same amount (in moles and mass) of sodium nitrate, but a different volume of solution, then we only have to change it:

$M=\text{ }\frac{0.04678\text{ mol}}{275\text{ mL *}\frac{1\text{ L}}{1000\text{ mL}}}=\text{ 0.1701 M}$

So, the molarity of this solution is 0.1701 M.

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10 months ago

In the Periodic Table, what is the relationship between two elements that are placed side-by-side in a row?

marusya05 [52]

Answer is D. The periodic table rows are arranged by increasing atomic number. The atomic number is decided by how many protons they have.

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3 years ago

Determine the electron geometry, molecular geometry and polarity of tecl6.

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The electron geometry of TeCl6 is octahedral, while the molecular geometry is octahedral, non polar.
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When a collision occurs between two reactant particles that, between them, have the required minimum kinetic energy, or activati

erastovalidia [21]

c.unfavorable geometry

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2 years ago

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