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Nataly_w [17]
3 years ago
15

What is the product of Mg+HF

Chemistry
1 answer:
Readme [11.4K]3 years ago
3 0

MgF2 + H2

Fluorine now has a subscript of 2 due to the fact that Magnesium has a charge of two; swap and drop rules applied means that it switches over to Fluorine.

Hydrogen has a charge of two as it's one of the diatomic elements, meaning it has a charge of two when alone. The other diatomic elements are Fluorine, Oxygen, Nitrogen, and the Halogens.

Hope this helps!


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Answer:

Ca, Zn, Ni, Al, Fe

Explanation:

The activity series is an arrangement of metals in order of decreasing reactivity.

Metals that are high up in the activity series are very reactive. They displace metals that are lower in the activity series from an aqueous solution of their salts.

The metals; Ca, Zn, Ni, Al, Fe are all above Pb in the activity series hence they will cause Pb2+ ions to come out of solution as solid Pb.

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A sample of gas with a mass of 21.3 g is confined to a vessel of volume 7.73 L at 0.880 atm and 30.00C.
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Notice that we don't have moles; we instead have the mass. Remember, though that moles can be written as m/M, where m is the mass and M is the molar mass. So, we can replace n in the equation with m/M, or 21.3/M. The components we now have are:

- P: 0.880 atm

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- n: m/M = 21.3 g / M

- R: 0.08206

- T: 30.00°C + 273 = 303 K

Plug these in:

PV = nRT

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M = (dRT)/P, where d is the density

We have all the components except d, so plug them in:

77.9 = (d * 0.08206 * 298) / 1

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Hey mate here's your answer ⤵️

a mark or character used as a conventional representation of an object, function, or process, e.g. the letter or letters standing for a chemical element or a character in musical notation.

<h2 /><h2 /><h2>Hope it was helpfulll</h2>
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