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2 years ago

Use the Bohr-Rutherford model of the atom to explain how an insulator-differs from a conductor

Chemistry

1 answer:

GaryK [48]2 years ago

6 0

Answer:

A conductor is a material that permits electrons to effortlessly go through it. Copper is a good conductor. Note that the valence shell has just a single electron.

While;

Materials that don't conduct are named insulators.(i.e. glass, porcelain, plastic, elastic. The covering on electrical wire is an insulator.)

Insulators don't conduct since they have a full or almost full valence shell and along these lines their electrons are firmly bound.

Explanation:

According to Bohr Rutherford model of Atom, An Atom contains three essential particles; Protons and neutrons that make up the nucleus and the electrons that circle or orbit the nucleus. The electrons circle the nucleus.

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What is the empirical formula for a compound that is 82.2% nitrogen and 17.8% hydrogen?

Stolb23 [73]

Empirical formula=CH3

3 0

2 years ago

1. look at the sequence of pictures what happened to the Apple overtime. 2. no chemical was added to the Apple explain why the A

Goshia [24]

Answer: it started too rot over time mold over time and decay and if you cooked a apple it would melt like ice cream cause of the heat waves and if the apple is surrounded by air i think what would happen it would still rot I guess but i wouldnt know for sure cause things with air take time too rot and things with air rot faster and slicing the apple into more pieces would make it decay or rot or mold faster cause its open and accepting everything it sees like bacteria bugs all that

Explanation: like the longer a apple is left half open it starts too rot then mold over time getting all bad and not good too eat or decay

read it all the stuff is in there i think

8 0

2 years ago

Please help me dont just use me for points

JulijaS [17]

Answer:

It's B

Explanation:

A is going to evaporate more quickly causing it to push through the tube to beaker B.

4 0

2 years ago

You are working in your laboratory and decide to do some cleaning. You find a test tube with some brown substance congealed at t

Anna [14]

Answer:

The mystery substance is C. Bromine (Br)

Explanation:

Argon (Ar) is a noble gas. Whose freezing point is -189 °C (very low), thus it cannot be the frozen substance. Also, it is not reactive, thus is would have not reacted with iron. Hence, argon is not the mystery substance.

Scandium (Sc) is a metal from group 3 of the periodic table, thus is will not react with iron. Thus, scandium is not the mystery substance.

Both bromine and iodine are halogens (group 17 of the periodic table).

The freezing point of bromine is −7.2 °C, and the freezing point of iodine is 113.7 °C. Thus, both could be solids (frozen) in the lab.

The reactivity of the halogens decrease from top to bottom inside the group. Bromine is above iodine. Then bromine is more reactive than iodine.

Bromine is reactive enough to react with iron. Iodine is not reactive enough to react with iron.

You can find in the internet that bromine vapour over hot iron reacts producing iron(III) bromide. Also, that bromine vapors are red-brown.

Therefore, the mystery substance is bromine (Br).

7 0

3 years ago

Which one of the following exhibits dipole-dipole attraction between molecules? Group of answer choices SF6 HCl O2 CF4 C10H22

Cerrena [4.2K]

Answer:

The correct answer is HCl

Explanation:

There is a dipole-dipole force in hydrochloric acid (HCl), this type of attraction occurs in polar covalent molecules. In this case, the positive end of the molecule (H) attracts the negative (Cl).

6 0

2 years ago