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Vlad1618 [11]
2 years ago
7

Someone help plzz! I can’t go ahead if I don’t do this

Chemistry
1 answer:
KatRina [158]2 years ago
8 0

Answer:

Just draw something you know about this topic and do it faster that you ever have before. YOU GOT THIS!!!!!!!

Explanation:

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3. Given the following equation:
miskamm [114]

Answer:

4.767 grams of KCl are produced from 2.50 g of K and excess Cl2

Explanation:

The balanced equation is

2 K+ Cl2 --->2 KCI

Here the limiting agent is K. Hence, the amount of KCl will be calculated as per the mass of 2.50 gram of K

Mass of one atom/mole of potassium is 39.098 grams

Number of moles is 2.5 grams = \frac{2.5}{39.098} = 0.064

So, 2 moles of K produces 2 moles of KCL

0.064 moles of K will produces 0.064 moles of KCl

Mass of one molecule of KCl is 74.5513 g/mol

Mass of 0.064 moles of KCl is 4.767 grams

4 0
3 years ago
What is the basis for the classification of organic compounds?​
frutty [35]

Answer:

So compound are classified on two bases.

They are structure and Function.

4 0
3 years ago
Who first published the classification of the elements that is the basis of our periodic table today
saw5 [17]
Dmitri Mendeleev was the first to publish the classification.
8 0
3 years ago
A 52.0 g of Copper (specific heat=0.0923cal/gC) at 25.0C is warmed by the addition of 299 calories of energy. find the final tem
Leto [7]

Answer : The final temperature of the copper is, 87.29^oC

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat gained  = 299 cal

m = mass of copper = 52 g

c = specific heat of copper = 0.0923cal/g^oC      

\Delta T=\text{Change in temperature} 

T_{final} = final temperature = ?

T_{initial} = initial temperature = 25^oC

Now put all the given values in the above formula, we get the final temperature of copper.

299cal=52g\times 0.0923cal/g^oC\times (T_{final}-25^oC)

T_{final}=87.29^oC

Therefore, the final temperature of the copper is, 87.29^oC

4 0
4 years ago
A _____________reaction mechanism involves loss of a leaving group, formation of a ________ followed by the removal of a proton
Molodets [167]

Answer:

The correct answer is Option C (E1) and Option B (carbocation).

Explanation:

  • Intramolecular immunity idols are considered as that of the formation mechanism with E1 responses or reactivity.
  • Reactants with E1 were indeed obligations of both parties, meaning that an E1 reaction was conducted thru all the two stages known as ionization but rather deprotonation. Involves the absence of either an aromatic ring, a carbocation has been generated throughout the ionization solution.

Some other possibilities offered aren't relevant to the procedure outlined. So the above alternative is accurate.

7 0
3 years ago
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