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Marianna [84]
3 years ago
13

Cyanide poisoning can occur when compounds such as sodium cyanide dissociate in water to produce cyanide ions. what is the formu

la for sodium cyanide?
Chemistry
2 answers:
Bas_tet [7]3 years ago
5 0
Cyanide is one of those pesky polyatomic ions that just must be memorized. Its formula is CN^{-}. The formula for a sodium ion is Na^{+}. These combine in equal proportions to make NaCN. Its high affinity for metals make this really nasty stuff!
Sunny_sXe [5.5K]3 years ago
4 0
Eezy real talk ma frend!
The fromula for sodium cyanide is NaCn.
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Mass = 325.2 volume = 62.5 cm what's the density ?
boyakko [2]

Answer:

159571 lb or cubic feet

Explanation:

3 0
3 years ago
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Which substance is a mixture?<br> table salt<br> gasoline<br> aluminum<br> carbon dioxide
GaryK [48]

Answer:

Gasoline

Explanation:

Pure Substance: are those having same type of atoms or molecules.

Compound: one or more atoms of the element combine to form a compound.

Mixture: is combination of one or more substances mix together.

Homogeneous Mixture: are those which are not distinguish by naked eye but can be separated into its components by physical means

Heterogeneous mixture: are those which can be distinguishing by naked eye and can be separated into its components by physical means.

So keeping in mind the above definitions

Table salt:

The chemical formula of table salt is NaCl and it a pure compound not mixture.

Gasoline:  

Gasoline is mixture of hydrocarbon, It contains small hydrocarbons ranging from 4 Carbon to 12 Carbon per molecule. it is a homogeneous mixture.

Aluminum:

Aluminum is a pure substance that is made up of same kind of atoms. so it is an element and not mixture. Its symbol is Al

Carbon dioxide:

Carbon dioxide is a pure compound and its chemical formula is CO₂ and not a mixture.

So, the write option is Gasoline.

6 0
4 years ago
Read 2 more answers
Permanganate ion reacts in basic solution with oxalate ion to form carbonate ion and solid manganese dioxide. Balance the skelet
saw5 [17]

Answer:

2MnO4^- (aq) + 3C2O4^2- (aq) + 2H2O (l) --> 2MnO2(s) +6CO3^2 -(aq) + 4H^+ (aq)

Explanation:

First, write the half equations for the reduction of MnO4^- and the oxidation of C2O4^2- respectively. Balance it.

Reduction requires H+ ions and e- and gives out water, vice versa for oxidation.

Reduction:

MnO4^- (aq) + 4H^+ (aq) + 3e- ---> MnO2(s) + 2H2O (l)

Oxidation:

C2O4^2- (aq) + 2H2O (l) ---> 2CO3^2 -(aq) + 4H^+ (aq) + 2e-

Balance the no. of electrons on both equations so that electrons can be eliminated. we can do so by multiplying the reduction eq by 2, and oxidation eq by 3.

2MnO4^- (aq) + 8H^+ (aq) + 6e- ---> 2MnO2(s) + 4H2O (l)

3C2O4^2- (aq) + 6H2O (l) ---> 6CO3^2 -(aq) + 12H^+ (aq) + 6e-

Now combine both equations and eliminate repeating H+ and H2O.

2MnO4^- (aq) + 8H^+ (aq) + 3C2O4^2- (aq) + 6H2O (l) --> 2MnO2(s) + 4H2O (l) +6CO3^2 -(aq) + 12H^+ (aq)

turns into:

2MnO4^- (aq) + 3C2O4^2- (aq) + 2H2O (l) --> 2MnO2(s) +6CO3^2 -(aq) + 4H^+ (aq)

5 0
4 years ago
Which substance has AHf defined as O kJ/mol?
Andru [333]

Answer:

(C). is the answer, I think

5 0
3 years ago
The proposed mechanism for a reaction is 1. ClO-(aq) + H2O(l) =&gt; HClO(aq) + OH-(aq) SLOW 2. I-(aq) + HClO(aq) =&gt; HIO(aq) +
HACTEHA [7]

Answer:

The correct answer is option A.

Explanation:

Step 1 : Slow

ClO^-(aq) + H_2O(l)\rightarrow HClO(aq) + OH^-(aq)

Step 2: Fast

I^-(aq) + HClO(aq)\rightarrow HIO(aq) + Cl^-(aq)

Step 3: Fast

OH^-(aq) + HIO(aq)\rightarrow H_2O(l) + IO^-(aq)

When there is a recation which is taking place in a more that single steps than  the rate of the reaction is determined by the slowest step occurring in the reaction mechanism.

So, according to question step 1 is slow step which means that rate of the reaction will be :

R=k[ClO^-][H_2O]

8 0
3 years ago
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