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3 years ago

A. Exothermic B. Isothermic C. Endothermic

Chemistry

1 answer:

Sati [7]3 years ago

6 0

Answer:

C. Endothermic

Explanation:

Since the products potential energy is higher than the reactants potential energy, it has abosrbed energy, thus making the graph endothermic.

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To reduce the amount of CO2 that escapes from a bottle of carbonated beverage when you open the cap, you should

notka56 [123]

Answer:

Explanation:

i havnt done this in school yet but my idea is that shaking the bottle makes the co2 float to the top, then when you open it the presure will release and the co2 with rush out

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4 years ago

The source of Earth's magnetic field is best explained by _____.

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Electrostatics i think thats the right answer

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3 years ago

Read 2 more answers

Which is the balanced single displacement reaction between Aluminum (Al3+) and Copper Sulfate (Cu2+(SO4)2-)

Aliun [14]

Answer:

The balanced single displacement reaction between aluminum and copper sulphate is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

Explanation:

The given ions are as follows.

$Al^{3+}$ - Aluminium ion and copper sulfate ion.

Single displacement reaction occurs one element replaces another element.

Hence, the balanced chemical reaction is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

Oxidation half reaction:

$Al\rightarrow Al^{3+}+3e^{-}$

Aluminium loses three electrons.

Reduction half reaction:

$Cu^{2+}+2e^{-}\rightarrow Cu(s)$

Copper gain three electrons.

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3 years ago

The most dangerous form of skin cancer which is often caused by over exposure to ultraviolet radiation is what?

katrin [286]

UV exposure that leads to sunburn is proven in developing melanoma, the most dangerous of the three most common types of skin cancer.

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3 years ago

A mixture of CO (g) and excess O2(g) is placed in a 1.0 L reaction vessel at 100.0C and a total pressure of 1.50 atm. The CO is

umka2103 [35]

Answer:

Partial pressure of of CO₂ in the product mixture is 0,20atm

Explanation:

The balance equation is:

2CO(g) + O₂(g) → 2CO₂(g)

Total pressure of CO(g) and O₂(g) gases before reaction at 100,0°C and 1,0L is 1,50 atm. You can say:

X₁ + Y₁ = 1,50atm (1)

Where X₁ is initial partial pressure CO and Y₁ is initial partial pressure of O₂

After reaction partial pressures are:

X₂ = X₁ - 2n = 0; 2n = X₁

Y₂ = Y₁ - n

Z₂ = 2n

Where Z₂ is final partial pressure of CO₂

After reaction pressure at 100,0°C and 1,0L is 1,40 atm, that means:

1,40 atm = (Y₂ + Z₂)

1,40 atm = Y₁ - n + 2n

1,40atm = Y₁ + n

1,40 atm = Y₁ + X₁/2 (2)

Replacing (1) in (2)

1,40 atm = 1,50atm - X₁ + X₁/2

-0,10 atm = - X₁/2

0,20 atm = X₁.

As 2n = X₁; 2n = Z₂ = 0,20 atm

I hope it helps!

7 0

3 years ago