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strojnjashka [21]
3 years ago
11

What is Molecule made off?a) Electronsb) Protonsc) Atomsd) Nuclei​

Chemistry
2 answers:
Naya [18.7K]3 years ago
6 0
Answer: C

There are 2 or more different type of atoms within a molecule
exis [7]3 years ago
6 0

Answer:

C) Atoms

Explanation:

Hope that helped :)

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How does H3PO ionize in water ?
Nonamiya [84]

Answer:

H3PO4 + H2O ↔ H^{+} + H2PO4^{-}

Explanation:

HNO3 → NO2 + H2O + O2

H2SO4 → SO3 + H2O + O2

5 0
3 years ago
Which electron configuration represents a potassium atom in excited state
Anestetic [448]

Answer: The electronic configuration of potassium atom in excited state is 1s^22s^22p^63s^22p^64s^04p^1

Explanation:

There are 2 states classified under energy levels:

1. Ground state: This is the lower energy state which is termed as stable state.

2. Excited state: This is the upper energy state and is termed as the unstable state. All the electrons which are present in this state always come back to the ground state.

Ground state electronic configuration of potassium (Z = 19) : 1s^22s^22p^63s^22p^64s^1

As, only 1 electron can freely move to upper state. Hence, the excited state electronic configuration of potassium will be: 1s^22s^22p^63s^22p^64s^04p^1

5 0
3 years ago
Read 2 more answers
A copper rod that has a mass of 200.0 g has an initial temperature of 20.0°C and is heated to 40.0°C. If 1,540 J of heat are nee
Romashka [77]

Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1)</span>

1540 = 200.0 (C)(40 - 20)

<span> <span>C = 0.385 J / g C</span></span>

<span><span>
</span></span>

<span><span>Hope this answers the question. Have a nice day.</span></span>

8 0
4 years ago
Read 2 more answers
What are solenoids......????​
MrRissso [65]

Yo sup??

Solenoids are a kind of bar magnet.

The have low coercivity and low retentivity

The are made by taking a soft iron core and covering it with a coil.

Hope this helps.

6 0
3 years ago
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Which group of elements on the periodic table can have more than one possible charge? noble gases alkali metals alkaline earth m
Kamila [148]
Transition Metals can have more than one possible charge.
4 0
4 years ago
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