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1 year ago

Mercury has a density of 0.0136 kg/cm^3. what mass of mercury is needed to fill a container that is 4.5 cm x 6.4 cm x 3.8 cm?

Chemistry

1 answer:

ololo11 [35]1 year ago

7 0

The mass of mercury is 1.48 kg.

What is mercury?

Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a good conductor of electricity. it has a freezing point of −38.83 °C.

To know more about mercury go to the given link:

https://brainly.in/question/10028

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Properties of waves poem plzz help!!!!!!

GalinKa [24]

Answer:

They include frequency, period,speed,amplitude and phase

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3 years ago

GIVING BRAINLIEST!!! A student observes a beaker of room temperature water resting on a table. She states that the beaker of wat

defon

Answer:

Explanation:

im thinking because the water is a room temperature there shouldnt be anm immence amount og heat energy for it to have a good amount of energy tho i could be wrong because its not moving it could have no energy.

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2 years ago

Read 2 more answers

Compare the polymerisation reaction used to produce poly(ethene) with the

butalik [34]

Answer:

See explanation

Explanation:

Polymerization is the process whereby two or more monomers link together to form a compound of high molecular mass called a polymer.

There are two kinds of polymers;

-Addition polymers

-Condensation polymers

Addition polymers are formed by the joining of two or more monomers to form a polymer without the elimination of a small molecule.

Condensation polymers are formed by the joining of two or more molecules to form polymers with the elimination of a small molecule.

The main difference between polyethene and polyester is that polyethene is an addition polymer while polyester is a condensation polymer.

In polyethene, ethene molecules are joined together having the repeating unit as [-CH2-CH2-]n.

In polyester, the polymer arises from the reaction of carboxylic acid and an alcohol and loss of water molecules.

5 0

2 years ago

Extend the aufbau sequence through an element that has not yet been identified, but whose atoms would completely fill 7p orbital

Thepotemich [5.8K]

Answer:

Number of electrons = 118

Electronic configuration: [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶

Explanation:

Given: A chemical element that has completely filled 7p orbital.

According to this, the principal occupied electron shell or the valence shell of such an element is 7p.

⇒ the principal quantum number (n) for the valence shell is 7.

∴ this element belongs to the period 7 of the periodic table.

Also, an element that has completely filled p-orbital belongs to the group 18 of the p-block.

Therefore, an element that belongs to the group 7 and period 18 of the periodic table, should have a completely filled 5f, 6d, 7s and 7p orbitals.

Therefore, the electronic configuration should be: [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶

And, the number of electrons = atomic number of radon (Rn) + 14 + 10 + 2 + 6 = 86 + 32 = 118.

Therefore, the given element has atomic number 118 and has the electronic configuration: [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶. Thus the given element can be Oganesson.

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3 years ago

Convert 78.9 kJ into calories (can you also explain how pls, ty <3)

Elza [17]

Answer:

1 Joule=0.2390057361 Calorie

789kj=789×0.2390057361×1000

=188575.5257829calorie

Explanation:

Hope u have understand

3 0

2 years ago