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3 years ago

Given the unbalanced chemical equation below. What would be the coefficient of AgNO3?

1 answer:

8 0

2
I can’t really explain in words so I took a pic of the work I did (Ignore the worksheet and just look at what I wrote to balance the equation.)

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Food chains always begin with what type of organism? Why?

Inessa05 [86]

The food chain always begins with a sun without it there would be no food chain... hope this helped!

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3 years ago

Determine whether the disruption of the bonds or attractions occurs during protein hydrolysis or protein denaturation.

Aleonysh [2.5K]

Answer:

The disruption of the bonds or attractions occurs during protein hydrolysis which results in the loss for the primacy structure. The peptide bonds is the bond affected in this scenario.

The disruption of the bonds however only exist in the process of denaturation and this results in a change in the confirmation which could be secondary, tertiary, and quaternary structural related. And example of the bonds affected include salt bridges, disulfide bridges, hydrogen bonds etc.

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3 years ago

How could Mendeleev predict the properties of elements that had not yet been discovered?

icang [17]

It was the element of aluminium where they predict their properties

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3 years ago

Why do reactions need to be balanced?

nexus9112 [7]

Answer:

A part.

Explanation:

Because the reactants must be the exact same as the the products.

5 0

3 years ago

A sample of octane burns releasing 2290 J of heat to the surroundings, and the gases produced expands against a piston to do 560

dexar [7]

Answer: The internal energy change for the reaction is -2850 J

Explanation:

Sign convention of heat:

When heat is absorbed, the sign of heat is taken to be positive and when heat is released, the sign of heat is taken to be negative.

Sign convention of work:

Work done for expansion process is taken as negative and work done for compression is taken as positive.

According to the First law of thermodynamics,

$\Delta U=q+w$

where,

$\Delta U$ = internal energy

q = heat absorbed or released = -2290 J

w = work done = -560 J

Putting values in above equation, we get:

$\Delta U=(-2290)+(-560)\\\\\Delta U=-2850J$

Hence, the internal energy change for the reaction is -2850 J

4 0

3 years ago