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3 years ago

13

The phase that is most likely to occur at high temperatures and high pressures is:

1 answer:

kogti [31]3 years ago

6 0

WELL IT DEPENDS ON WHAT IT DOING IT TO BUT TRY SOLID

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A test tube containing CaCO₃ is heated until the entire compound decomposes. If the test tube plus calcium carbonate originally

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3 years ago

Acids or bases can be tested by chemical_________

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2 years ago

Read 2 more answers

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

When a pure substance melts does its particles get larger

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No,they just separate away from each other

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