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3 years ago

Why might electricity and magnetism be effective methods of collecting indirect evidence about atoms?

Chemistry

1 answer:

maks197457 [2]3 years ago

8 0

Answer:

Atoms are composed of electrically charged particles and moving electric charges possess an associated magnetic field.

Explanation:

An atom is made up of electrons arranged in shells. Electrons are negatively charged. These charged particles produce an electric field which can interact with an external electric field to give information about atomic structure.

Similarly, a moving electron produces an associated magnetic field which can couple with an external magnetic field to give information about atomic structure.

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Balance equation: _NO + _H2O = _NH3 + _O2

Novosadov [1.4K]

Answer:

4NO + 6H2O = 4NH3 + 5O2

Explanation:

Think about it this way: there are 4N's 4O's and 12H's and 10O's on both sides that's what makes it balanced

Hope this helps :)

7 0

4 years ago

Round each number to three significant figures. 0.036549:

valina [46]

Answer:

0.0365

Explanation:

Three significant figures after the decimal include all numbers except the zeros before other numbers.

For example 0.000003431232 to three significant figures would be 0.00000343. However if the numbers are before the decimal, the zeros are included, for example 19828300 to three significant numbers would be 19800000.

8 0

3 years ago

Guy plzz help me the this and thanks

ad-work [718]

Answer:

Explanation:

In first picture,

When rock was not in the cylinder,

Volume of water

$= {18cm}^{3}$

In second picture, 

When rock is in the cylinder,

Volume of water

$= {36cm}^{3}$

Hence,

Volume of rock

$= 36 {cm}^{3} - {18cm}^{3}$

$= 18 {cm}^{3} (ans)$

4 0

3 years ago

Which compound has the highest melting point?

motikmotik

I think b carbon dioxide

3 0

3 years ago

Which of the following is a unit of density? = Mass / volume

krok68 [10]

Answer:

The correct answer is C.

Explanation:

To solve this problem, we should first recall possible units for mass and volume. Mass can be represented with units of grams, kilograms, etc. Volume has units of cubic meters, cubic centimeters, etc.

Therefore, since we know that density is mass divided by volume, the only answer that makes sense here is C. grams per cubic centimeter (where per signifies that grams are being divided by cubic centimeters).

Hope this helps!

7 0

3 years ago

Read 2 more answers