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3 years ago

Why did the can not become instantly crushed when plunged in the ice water when it was heated without any water inside?

1 answer:

3 0

Because since there's no water in the can, the cold water outside of it didn't have to equalize with the missing hot water that's missing from inside the can. if there was hot water inside the can then it was plunged inside the ice water, there it would have instantly been crushed.

Hope this helps

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Select the correct answer.

vitfil [10]

Answer:

The answer is B

Explanation:

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3 years ago

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In the balanced reaction below, what is the mole ratio comparing iron (Fe) and oxygen gas (O2)?

zepelin [54]

The given balanced reaction is,

$4Fe(s) + 3O_{2}(g) --->2Fe_{2}O_{3} (s)$

The stoichiometric coefficients of each element or compound represents the number of moles of that element or compound required for the complete reaction to take place.

The mole ratios of different products and reactants will be:

$\frac{Fe}{O_{2}} = \frac{4 mol Fe}{3 mol O_{2}}$

$\frac{Fe}{Fe_{2}O_{3}} = \frac{4 mol Fe}{2 Fe_{2}O_{3}}$

$\frac{O_{2}}{Fe_{2}O_{3}} =\frac{3 mol O_{2}}{2molFe_{2}O_{3}}$

So the mole ratio comparing iron (Fe) and oxygen gas ( $O_{2}$ ) is

4 : 3

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3 years ago

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Which ion gives colored solutions and give reason? cu an Ti v

Anvisha [2.4K]

Answer: Complex ions.

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3 years ago

Tyrosine absorbs maximally at 290 nm. A 0.2162 g sample containing some amount of Tyrosine was placed into a 250.0 mL volumetric

mojhsa [17]

Answer:

B. 0.069 %

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kindly check the attached image below for the solution to the above question.

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3 years ago

Are ions of alkali metals larger or smaller than ions of alkaline earth metals from the same period

PtichkaEL [24]

Because size of an atom INCREASES from top to bottom and DECREASES from left to right on the periodic table. If to elements are in the same period they can't increase in size based on the up or down trend. Instead, notice that Alkali Metals are LEFT of Alkaline Earth Metals. Therefore, the Alkali Metal will be larger than the Alkaline Earth Metals.

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