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3 years ago

12

How do different forms of transportation meet people’s transportation needs?

1 answer:

dalvyx [7]3 years ago

6 0

If theres an all of the above option then I'll pick that if not then, ships

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Enter the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation AZX

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3 years ago

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Differentiate between nuclear charge and effective nuclear charge

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3 years ago

The rate of disappearance of HBr in the gas phase reaction2HBr(g) → H2(g) + Br2(g)is 0.301 M s-1 at 150°C. The rate of appearanc

jok3333 [9.3K]

Answer: 0.151

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

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

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

$Rate=-\frac{1d[HBr]}{2dt}=+\frac{1d[H_2]}{2dt}=+\frac{1d[Br_2]}{dt}$

Given: $-\frac{d[HBr]}{dt}]=0.301$

Putting in the values we get:

$\frac{0.301}{2}=+\frac{1d[Br_2]}{dt}$

$+\frac{1d[Br_2]}{dt}=0.151$

Thus the rate of appearance of $Br_2$ is 0.151

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3 years ago

Fires in forests can sometimes be stopped by cutting down trees to make a gap called a for break. Which part of the fire triangl

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It removes the fuel for the flame.

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Which set of chemical name and chemical formula for the same compound is correct?

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