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iris [78.8K]
2 years ago
8

If the coefficients are Molar ratios, in this

Chemistry
1 answer:
MaRussiya [10]2 years ago
7 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

In the equation, coefficients are molar ratios, so we can conclude that :

For the given reaction to proceed smoothly, we need 3 moles of H2 molecule ~

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Is a burning log an exothermic or endothermic event if the log is the system?
denpristay [2]
It would be endothermic because the log is in the system.
6 0
2 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

8 0
3 years ago
An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxi
Alenkinab [10]
<span>An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxidation-reduction reaction but it is also an example of a double-displacement reaction. 

</span><span>cooking requires continuous addition of energy to the chemical reactions the are taking place the chemical reaction involved in cooking can be described as a chemical change.

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3 0
3 years ago
Read 2 more answers
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Answer: b) positron

Explanation:

The antiparticle or the antimatter counterpart of the electron is called positron.

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Below is an attachnent that further explains this

7 0
3 years ago
Please help!! List 2 advantages and disadvantages of each chart below worth 40 points!
barxatty [35]

Answer:

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Advantage- Clean source

Safe

Disadvantage- Expensive

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Advantage- Easy to find

Affordable

Disadvantage- Non renewable

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Explanation:

I helped you out with two of them

7 0
3 years ago
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