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3 years ago

Which of the following statements describes the results of this reaction?

Chemistry

1 answer:

yanalaym [24]3 years ago

6 0

Answer: The correct answer is option (A).

Explanation:

Oxidation : A chemical reaction in which addition of oxygen occurs or removal of hydrogen occurs is called oxidation.

Reduction:A chemical reaction in which elimination of oxygen occurs or addition of hydrogen occurs is called reduction.

In a given reaction,:

$C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O+Energy$

The glucose molecule is getting oxidized into carbon-dioxide. Before oxidation in glucose molecule ratio of carbon and oxygen atom was 1:1 which changes to 1:2 after oxidation of glucose into carbon-dioxide.

Hence, $C_6H_{12}O_6$ is getting oxidized.

The oxygen molecule is reduced because addition of hydrogen atoms are taking place in oxygen molecules which gives water after reduction.

Hence, $O_2$ is getting reduced.

So, correct answer is option (A).

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The balanced net ionic equation for the neutralization reaction involving equal molar amounts of hno3 and koh is ________.

frosja888 [35]

The net ionic equation for the neutralization reaction involving equal molar amount amount of HNo3 and KoH is

H^+ + OH^- = H2O (l)

explanation
write the chemical equation
HNO3 (aq) + KOH(aq) = KNO3(aq) +H2O (l)

ionic eequation

H^+(aq) + NO3^- (aq) + K^+9aq) OH^-(aq) = K^+ (aq) + NO3^-(aq) + H2O(l)

cancel the spectator ions( ions which does not take place in equation ) for this case is NO3^- and No3^-

thus the net ionic is

H^+(aq) + OH^- (aq) = H2O(l)

8 0

3 years ago

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A chemist writes a report to his superiors regarding his experiments to make a new compound. Which part of the scientific method

N76 [4]

I think the answer as communicating findings.

4 0

3 years ago

How do you identify an acid from its chemical formula

Usimov [2.4K]

First find the names of the acids end in “acid”. Acid formulas have one of these forms: HX(aq) or HaXbOc then find the Ionic compounds that contain hydroxide. (OH-) , carbonate (CO32-) , or hydrogen carbonate (HCO3-) anions are basic.

7 0

3 years ago

What is the pressure inside a cylinder when the volume changes from 12.49 dm3 to 47.32 dm3 with an initial pressure of 7.257 x 1

zvonat [6]

Answer:

The pressure inside becomes : 202.646 KPa

Explanation:

Given ,

The temperature inside the cylinder is constant
The number of moles of the gas inside the cylinder will also be constant because it's a closed one.

Now according Boyle's law ,

The pressure of a gas of fixed mass is inversely proportional to its volume at a constant temperature.

Thus ,

$P_1V_1=P_2V_2\\$

$P_1$ is the initial pressure $7.257*102*10^3 Pa$
$P_2$ is what we need to find
$V_1 = 12.49dm^3$ - initial volume
$V_2 = 47.32dm^3$ - final volume

∴

$7.527*102*10^3*12.49=P_2*47.32\\P_2=2.02646*10^5Pa$

The pressure inside becomes : 202.646 KPa

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3 years ago

Which factor is key to the earth having seasons?

SpyIntel [72]

1. the earth spining on its axis.
a.92.96 million mi
b.When the sun's rays strike Earth's surface near the equator, the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle). Therefore, the solar radiation is concentrated over a smaller surface area, causing warmer temperatures.
c.The moon's gravitational pull on the Earth is the main cause of the rise and fall of ocean tides. The moon's gravitational pull causes two bulges of water on the Earth's oceans—one where ocean waters face the moon and the pull is strongest and one where ocean waters face away from the moon and the pull is weakest.
d. about 1,000 miles per hour (1,600kph)

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3 years ago

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