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anygoal [31]
3 years ago
5

What is correct ratio of coefficients to balance this chemical equation

Chemistry
1 answer:
german3 years ago
3 0

The key in the balancing of chemical reaction is to make sure that you got the exact chemical formula of the substance that is reacting and the yielded product. After getting the formula, identify first the hardest element/atom to be balanced such as Na, Zn, Cl, etc. Then proceed to the easier ones such as O, H. Make sure to not the atoms present in the molecule of the substance. For example Al(s) + HCl(aq) à AlCl3(aq) + H2(g). the hardest element here is the Cl. Observe that there are 3Cls in the product side so add 3 to the HCl. However, it would not balance the H2 in the product side so you increase the addition to AlCl3, add 2. Now you have 6 atoms of Cl, add this to the reactant side, you get 6HCl. Since you have 6Hs, add 3 to H2 (3 multiplied by 2 gives 6).  Then Al has 2 atoms in the product side, add 2 to the reactant side. The balance chemical reaction is 2Al(s) + 6HCl(aq) à 2AlCl3(aq) + 3H2(g).

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If 20.0 mL of a 0.0800 M HNO3, 35.0 mL of a 0.0800 M KSCN, and 40.0 mL of a 0.0800 M Fe(NO3)3 are combined, what is the initial
Tems11 [23]

Answer:

0.0295M

Explanation:

As you can see, in the mixture you have KSCN and other compounds. The KSCN in solution is dissolved in K⁺ ions and SCN⁻ ions. That means initial concentration of SCN⁻ ions is the same of KSCN, 0.0800M.

You are adding 35.0mL of this solution and the total volume of the mixture is 20.0mL + 35.0mL + 40.0mL = 95.0mL.

That means you are diluting your solution 95.0mL / 35.0mL = 2.714 times.

And the concentration of SCN⁻ is:

0.0800M / 2.714 =

<h3>0.0295M </h3>

4 0
3 years ago
Making methanol the element hydrogen is not abundant in nature, but it is a useful reagent in, for example, the potential synthe
stealth61 [152]
ΔG⁰ = ΔH⁰ - TΔS
ΔH⁰ = Hf,(CH₃OH) - Hf,(CO) = -238.7 + 110.5 = -128.2 kJ/mol
ΔS = S(CH₃OH) - S(CO) - 2S(H₂) = 126.8 - 197.7 - 2 x 130.6 = -332.1 J/mol.K
So 
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332.1 T < 128200
T < 386.028 K
5 0
2 years ago
A chemist measures the amount of chlorine gas produced during an experiment. She finds that of chlorine gas is produced. Calcula
Trava [24]

Answer:

0.779 moles.

Explanation:

Mass of chlorine/number of moles = molar mass of chlorine.

Molar mass of chlorine = (35.5*2)

= 71 g/mol.

Mass = 55.3 g of chlorine.

Number of moles = 55.3/71

= 0.779 moles.

8 0
2 years ago
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Paraphin [41]
The the last one, but isn't it c6h12o6?
8 0
3 years ago
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melamori03 [73]

Answer:

NH^4NO^3

Explanation:

Ammonium nitrate, (NH4NO3), a salt of ammonia and nitric acid, used widely in fertilizers and explosives.

4 0
3 years ago
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