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2 years ago

Complete end balance the reaction :copper plus hydrobromic acid

Chemistry

1 answer:

Reika [66]2 years ago

5 0

Answer:

The correct answer is - 2Cu + 4HBr → 2H[CuBr2] + H2

Explanation:

Copper (Cu) and hydrobromic acid (HBr), which is a dissolved form of hydrogen bromide in the water, react and produce hydrogen dibromidocuprate (I) and hydrogen molecules.

The complete and balanced equation is -

2Cu + 4HBr → 2H[CuBr2] + H2

This reaction takes place in the medium of ester. Copper is in the suspension form in this reaction.

Thus, the correct answer is - 2Cu + 4HBr → 2H[CuBr2] + H2

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Which statement is true about molarity and percent by mass? (3 points)

lakkis [162]

Answer: The correct option is, They are different units of concentration.

Explanation: Molarity : It is defined as the number of moles of solute present in one liter of solution.

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3 years ago

Read 2 more answers

identify the correct practices when setting up the condenser for a reflux system. select one or more:

erastovalidia [21]

The correct practices when setting up the condenser for a reflux system are option(c)and (d)i.e, to Grease the joint between the flask and the condenser and Align the flask so that the condenser is vertical.

A condenser's purpose is to transfer heat from a working fluid—in a steam power plant, for instance, water—to a secondary fluid or the ambient air. The effective heat transfer that takes place during phase shifts, in this case during the condensation of vapor into a liquid, is what powers the condenser.

A condenser is a heat exchanger used in heat transfer systems to cool a gaseous substance so that it condenses into a liquid condition. By doing this, the substance releases its latent heat and transfers it to the environment. On the back of a refrigerator, the condenser is located and is probably pretty dusty. The refrigerant cools down within and condenses, changing back from a gas to a liquid.

Learn more about condenser here:

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The complete question is:

Identify the correct practices when setting up the condenser for a reflux system.

Select one or more:

-Clip the stopper in the top of the condenser.

-Start the heat before the condenser water to test the set-up.

-Grease the joint between the flask and the condenser.

-Align the flask so that the condenser is vertical.

6 0

1 year ago

What do the coefficients in the following balanced chemical equation mean?

mafiozo [28]

It's either B or D because there would be 2 coefficients of hydrogen and one of oxygen

6 0

3 years ago

For a ternary solution at constant T and P, the composition dependence of molar property M is given by: M = x1M1 + x2M2 + x3M3 +

AveGali [126]

Answer:

$M_{i} = M_{i} + C_{xjxk} (1-2x_{i})$ ...1

$M^{\alpha } = M_{i} + CX_{xjxk}$ ...2

Explanation:

The ternary constant is given by the following equation:

The symbol XiXi, where XX is an extensive property of a homogeneous mixture and the subscript ii identifies a constituent species of the mixture, denotes the partial molar quantity of species ii defined by

$M_{i} = [\frac{d(nM)}{dn_{i} }]_{P,t,n,j}$

This is the rate at which property X changes with the amount of species i added to the mixture as the temperature, the pressure, and the amounts of all other species are kept constant. A partial molar quantity is an intensive state function. Its value depends on the temperature, pressure, and composition of the mixture.

In a multi phase system (in this case, a ternary system), the components resolved give:

$M_{i} = M_{i} + C_{xjxk} (1-2x_{i})$

and $M^{\alpha } = M_{i} + CX_{xjxk}$

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3 years ago

You are standing on the rim of a canyon, you drop a rock and in 7.0 seconds hear the sound pof it hitting the bottom, how deep i

sp2606 [1]

This should help you with your question:

Gravitational pull = 9.8 m/s^2

1/2 x 9.8 x 7^2 = 240.1 m

The rock has fallen 240.1 m.

I cannot help you with the rest, but this should give you a headstart.

8 0

3 years ago