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34kurt
3 years ago
11

The compound CCl4 is nonflammable and was once commonly used in fire extinguishers. On the basis of the periodic properties, whi

ch of the following compounds can most likely be used as a fire-resistant chemical? CIa (B) CH4 (C) CBr4 (D) PbCl2
Chemistry
1 answer:
o-na [289]3 years ago
5 0

Answer:

(C) CBr₄

Explanation:

The compound CCl₄ has one carbon atom (group 14) and 4 chlorine atoms (halogens). On the basis of the periodic properties, other 4 halogens bonded to carbon would also present nonflammable properties like those of CCl₄ -and thus they could be used as a fire-resistant chemical-, that's why the answer is C) CBr₄

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How many moles are there in 1.20 x 1025 particles of helium?
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You would get 19.969 moles.

Explanation:

You would get 19.969 moles.

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Of the substances xe, ch3cl, hf, which has: (a) the smallest dipole–dipole forces? (b) the largest hydrogen bond forces? (c) the
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Read 2 more answers
Solid potassium fluoride decomposes into fluorine gas and solid potassium .
dsp73

Answer:

                2 KF ₍s₎    →    F₂ ₍g₎  +  2 K ₍s₎

Explanation:

                    Chemical Formula of Potassium Fluoride  =  KF

                    Chemical Formula of Fluorine Gas  =  F₂

                    Chemical Formula of Solid Potassium  =  K

Step 1: Write the unbalance chemical equation,

                                             KF    →    F₂  +  K

Step 2: Balance Fluorine Atoms;

As there is one fluorine atom on left hand side and two fluorine atoms on right hand site therefore, to balance them multiply KF on left hand side by 2 i.e.

                                            2 KF    →    F₂  +  K

Step 3: Balance Potassium Atoms;

As there are two potassium atoms on left hand side and one potassium atom on right hand site therefore, to balance them multiply K on right hand side by 2 i.e.

                                             2 KF    →    F₂  +  2 K

Step 4: Assign Physical states as,

                                      2 KF ₍s₎    →    F₂ ₍g₎  +  2 K ₍s₎

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3 years ago
H E L P <br> M E H <br> P L E A S E
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Answer:

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