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sergejj [24]
2 years ago
12

Who organized the periodic table?

Chemistry
2 answers:
Wittaler [7]2 years ago
4 0
Dmitri Mendeleev was the creator and therefore organizer of the periodic table. 
Gelneren [198K]2 years ago
4 0
Dmitri Mendeleev organized the periodic table
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Calculate the number of molecules of sulphur S8 in 8 gram of solid Sulphur​
Luden [163]

Answer:

12gram

Explanation:

test told me

7 0
3 years ago
Hydration of alkynes gives good yields of single compounds only with symmetrical or terminal alkynes. Draw the major organic pro
Alexxandr [17]

Answer:

Following are the solution to the given choice:

Explanation:

Hex-2-yne is just not alkyne symmetric, therefore two things respectively hexan-3-one and hexan-2-one are to be given.

The attached file it displayed the response along with the mechanism, please find the.

8 0
3 years ago
Label the states of each compound in the reaction below.
devlian [24]

Answer:

CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)

Explanation:

CuSO₄ + 2KOH —> Cu(OH)₂ + K₂SO₄

To know the state of each compounds, we shall determine the complete ionic equation. This can be obtained as follow:

In solution, CuSO₄ and KOH will dissociate as follow:

CuSO₄(aq) —> Cu²⁺(aq) + SO₄²¯(aq)

KOH (aq) —> K⁺ (aq) + OH¯(aq)

CuSO₄(aq) + KOH (aq) —>

Cu²⁺(aq) + SO₄²¯(aq) + 2K⁺(aq) + 2OH¯(aq) —> Cu(OH)₂(s) + 2K⁺(aq) + SO₄²¯(aq)

Note: Cu(OH)₂ is insoluble in water.

Therefore, the elemental equation is:

CuSO₄(aq) + 2KOH (aq) —> Cu(OH)₂(s) + K₂SO₄(aq)

8 0
3 years ago
Delta H for each reaction ty!
Lubov Fominskaja [6]

Answer:

Reaction 1 = -462.5 kJ/mol

Reaction 2 = -572 kJ/mol

Magnesium combustion = -601.83 kJ/mol

5 0
3 years ago
If you move 50 meters in 10 seconds, what is your speed? Givens: d= t= Unknown: Formula: Plug in: Solve:
marta [7]

Answer:

\huge\boxed{5 \ m/s}

Explanation:

<u>Given:</u>

Distance = S = 50 m

Time = t = 10 secs

<u>Unknown:</u>

Speed = v = ?

<u>Formula:</u>

v = S/t

<u>Plug In:</u>

S = 50 m , t = 10 secs

<u>Solution:</u>

v = 50 m / 10 secs

v = 5 m/s

Hope this helped!

<h2>~AnonymousHelper1807</h2>
6 0
3 years ago
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