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2 years ago

Balance the following reaction, which occurs in acidic solution.

Chemistry

2 answers:

Vlada [557]2 years ago

8 0

Answer:

$\blue{ \rule{55555555pt}{99999pt}}$

kolbaska11 [484]2 years ago

7 0

That should be MnO_4- as oxidation no can't exceed 7

The solution attached

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Rewrite this measurement with a simpler unit, if possible. <br> 8.3 kg•m^2/ s^2

Feliz [49]

Answer: 8.3 J

Explanation:

We have the following measurement:

$8.3 \frac{kg m^{2}}{s^{2}}$

Rearranging the units:

$8.3 \frac{kg m}{s^{2}}m$

Since 1 Newton is $1 N=1 \frac{kg m}{s^{2}}$ :

$8.3 Nm$

Since 1 Joule is $1 J=1 Nm$ :

$8.3 J$ This is the simplest form possible

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3 years ago

What is the world's biggest material lab?

arlik [135]

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4 years ago

An experiment is carried out to observe the melting ice. Heat energy is supplied at a constant rate. The temperature of the ice

zhenek [66]

Answer:

If the ambient temperature around a piece of ice increases, the temperature of the ice will increase as well. However, this steady increase in temperature stops as soon as the ice reaches its melting point. At this point, the ice undergoes a change of state and turns into liquid water, and its temperature won't change until all of it has melted. You can test this with a simple experiment. Leave a cup of ice cubes in a hot car and monitor the temperature with a thermometer. You'll find that the icy water remains at a frosty 32 degrees Fahrenheit (0 degrees Celsius) until all of it has melted. When that happens, you'll notice a quick temperature rise as the water continues to absorb heat from the inside of the car.

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3 years ago

How to calculate the number of atoms in 5 moles of magnesium

vivado [14]

Number of atoms = moles of magnesium x 6.02x10^23
= 5x6.02x10^23
= 3.01x10^24 atoms.

Hope this helps!

6 0

3 years ago

Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical

Natalija [7]

Answer :

Part 1 : Yes, this reaction will take place.

Part 2 : No, this reaction will not take place.

Explanation:

Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.

It is represented as,

$A+BC\rightarrow AC+B$

In this reaction, A is more reactive element and B is less reactive element.

Reactivity series : It is used to determine the products of the single displacement reactions. As we know that in a single displacement reaction, the most reactive metal displaces the least reactive metal.

Part A :

This reaction will takes place because iron metal is more reactive metal than copper metal. So, iron metal can displaces copper metal from its solution.

The chemical reaction will be:

$Fe(s)+Cu(NO_3)_2(aq)\rightarrow Fe(NO_3)_2(aq)+Cu(s)$

Part B :

This reaction will not takes place because copper metal is less reactive metal than iron metal. So, copper metal can displaces iron metal from its solution.

The chemical reaction will be:

$Fe(s)+Cu(NO_3)_2(aq)\rightarrow \text{No reaction}$

5 0

4 years ago