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Leno4ka [110]
2 years ago
8

Compounds

Chemistry
2 answers:
Mama L [17]2 years ago
7 0

Answer:

have different properties from the elements they are made from

Explanation:

Compounds have different properties from the elements they are made from. Compounds are substances composed of two or more kinds of atoms/elements joined together in a definite grouping.

  • The properties of a compound are distinct and different from those of the individual elements that are combined in its make-up.
  • There are several millions of compounds that are known.
  • These are derived from elements.
vfiekz [6]2 years ago
4 0

Answer:

Que?

Explanation:

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Express the rate of the reaction in terms of the change in concentration of each of the reactants and products.
weeeeeb [17]

Answer:

c. rate=−1/2Δ[HBr]/Δt=Δ[H2]/Δt=Δ[Br2]/Δt

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

2HBr(g)\rightarrow H_2(g)+Br_2(g)

Thus, the rate is given as:

rate=-\frac{1}{2} \frac{\Delta [HBr]}{\Delta t}=\frac{\Delta [Br_2]}{\Delta t} =\frac{\Delta [H_2]}{\Delta t}

It is necessary to remember that each concentration to time interval is divided into the stoichiometric coefficient, that is why HBr has a 1/2. Moreover, the concentration HBr is negative since it is a reactant and it has a negative rate due to its consumption.

Therefore, the answer is:

c. rate=−1/2Δ[HBr]/Δt=Δ[H2]/Δt=Δ[Br2]/Δt

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4 0
3 years ago
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yanalaym [24]

Answer:

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H, has 10 moles in the butano formula.

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