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alisha [4.7K]
3 years ago
5

In an energy diagram for a chemical reaction, the reactants are always plotted to the left of the products.

Chemistry
2 answers:
Dominik [7]3 years ago
8 0

the answer is false at lest that is what i know

d1i1m1o1n [39]3 years ago
8 0

Answer:

True

Explanation:

An energy diagram for a chemical reaction is an energy vs. reaction coordinate graph that informs how a reaction is carried out in terms of the energy of the reactants, products, and intermediate states.

The reactants are drawn on the left, since initially the energy they possess is described in the diagram, followed by the different transition states where bonds are broken or formed, to give rise to the products, which are generally drawn on the right.

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natulia [17]
Tin metal reacts with hydrogen fluoride to produce tin(II) fluoride and hydrogen gas according to the following balanced equation.

Sn(s)+2HF(g)→SnF2(s)+H2(g)
Sn(s)+2HF(g)→
SnF
2
(s)+
H
2
(g)

How many moles of hydrogen fluoride are required to react completely with 75.0 g of tin?

Step 1: List the known quantities and plan the problem.

Known

given: 75.0 g Sn
molar mass of Sn = 118.69 g/mol
1 mol Sn = 2 mol HF (mole ratio)
Unknown

mol HF
Use the molar mass of Sn to convert the grams of Sn to moles. Then use the mole ratio to convert from mol Sn to mol HF. This will be done in a single two-step calculation.

g Sn → mol Sn → mol HF

Step 2: Solve.

75.0 g Sn×1 mol Sn118.69 g Sn×2 mol HF1 mol Sn=1.26 mol HF
75.0 g Sn×
1
mol Sn
118.69
g Sn
×
2
mol HF
1
mol Sn
=1.26 mol HF

Step 3: Think about your result.

The mass of tin is less than one mole, but the 1:2 ratio means that more than one mole of HF is required for the reaction. The answer has three significant figures because the given mass has three significant figures.
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Answer:

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Explanation:

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Explanation:

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