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Trava [24]
3 years ago
10

State and explain the observations when chlorine gas is bubbled through a solution of

Chemistry
1 answer:
natta225 [31]3 years ago
5 0

Answer:

A reduction-oxidation (redox) reaction will occur.

Chlorine gas (Cl2) will accept electrons to form Cl- ions.

The Iron(II) ions (Fe2+) will lose electrons to form Fe3+ ions. (Iron (III) ions)

Fe2+ ions are green, while Fe3+ ions are yellow,

so the observation will be the solution turning from green to yellow.

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What effect would a latitude of 60 degrees have on the climate
Salsk061 [2.6K]
The poles are located at the 90 degrees. The poles are extremely cold environments. If you think about how relatively close to the pole 60 degrees would be, you can assume it would be cold but not as extreme. So short summer, cold winters seems to be the most accurate.

You can also see in a map (attached) where the 60 degrees parallel actually is, and you can see what the climate tends to be in those areas.

6 0
2 years ago
Scintillatium has a halflife of 16 minutes. if a sample has 800 grams, find a formula for its mass after t minutes.
hichkok12 [17]
<span>Halflife is the time needed for a radioactive molecule to decay half of its current mass. If t is the time elapsed, the formula for the halflife would be:
final mass= original mass * </span>\frac{1}{2} ^{\frac{t}{halflife}
<span>
If you put the information of the problem into the formula, the equation will be:
</span>final mass= original mass * \frac{1}{2} ^{\frac{t}{halflife}
final mass= 800g * \frac{1}{2} ^{\frac{t}{16 min}
8 0
3 years ago
How do I know what to do and can you help me because I really need it I am failing chemistry because it is too hard.
Arlecino [84]

Exothermic:

An Exothermic reaction is a chemical reaction that expels energy in the form of heat/light. Everything a Endothermic does not do. Pretty simple for this one

reactants → products + energy.

For future reference - Exo means release, thermic means heat.

<u>Energy is a Reactant </u>

<u />

<u>_________________________________________________________</u>

Endothermic:

An Endothermic reaction essentially is draining the heat energy from anything its its surroundings. Usually its just heat but can also be salt dissolving it water or ice melting. Another example would be frost on your windshield evaporating.

It is the exact opposite of an Exothermic reaction.

<u>Energy is a Product</u>

4 0
3 years ago
Calculate the number of atoms in 4.2 moles of sulfur atoms.
Anuta_ua [19.1K]
1 mole = 6.022*10^23 atoms
4.2 moles sulfur = 4.2* 6.022 * 10^23 sulfur atoms = 2.421*10^24 sulfur atoms

1 mole sulfur = <span>32.065 g sulfur
4.2 moles sulfur = 4.2 * </span>32.065 g sulfur = 128.901 g sulfur
7 0
3 years ago
What mass of precipitate will be produced from the reaction of 50.0 mL of 2.50 mol/L sodium hydroxide with an excess of zinc chl
amid [387]

2NaOH + ZnCl2 → 2NaCl + Zn(OH)2

Zn(OH)2 is your precipitate.

No. of moles of NaOH = 2.50X50.0÷1000 = 0.125mol

2mol of NaOH reacted to produce 1 mol of Zn(OH)2.

No. of moles of Zn(OH)2 produced when 0.125mol of NaOH reacted

= 0.125 x 1 ÷ 2

= 0.0625mol

Mass of Zn(OH)2 = 0.0625 x [65.4+2(16+1)] = 6.21g

5 0
3 years ago
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