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3 years ago

Can a new element be discovered and be placed in between copper and nickel on the periodic table? Explain your answer.

Chemistry

1 answer:

laila [671]3 years ago

3 0

Answer:

Yes and no

Explanation:

If a new element is discovered and needed to be put into the table of elements, there would have to be a process to find a spot for it. The table is used heavily in chemistry and it revolves around how the elements are placed. So there would have to be a developed spot for the new element.

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Answer:

We slip when we step on a banana peel because the inner side of banana peel being smooth and slippery reduces the friction between the sole of our shoe and the surface of road.

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3 years ago

Sensitivity analysis is concerned with how certain changes affect

Ilia_Sergeevich [38]

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3 years ago

during which step of the scientific method does a scientist make an educated guess about the outcome of an experiment

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hypothesis statement or the very beginning.

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4 years ago

Read 2 more answers

Add the polynomials (7x^3-2x^2-12)+(3x^3-8x^2+10x)

laiz [17]

Answer:

10 x ^3 − 10 x ^2 + 10 x − 12

Explanation:

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3 years ago

How many grams of SnO2 are required to produce 1.20x10^21 molecules of water?

Drupady [299]

Answer:

<u>0.150 grams</u>

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Explanation:

The balanced chemical reaction to obtain water from SnO₂ is:

SnO₂ + 2H₂ → Sn + 2H₂O

The mole ratio is:

$\dfrac{1molSnO_2}{2molH_2O}$

Find the number of moles equivalent to 1.20× 10²¹ molecules of water, using Avogadro's number:

$1.20\times 10^{21}molecules\times \dfrac{1mol}{6.022\times 10^{23}molecules}=1.9927\times 10^{-3}moles$

From the mole ratio, the number of moles of SnO₂ are half the number of moles of water. That is:

0.0019927 moles / 2 = 0.00099635 moles of SnO₂

Use the molar mass of SnO₂ to convert the number of moles to grams:

molar mass of SnO₂ = 150.71g/mol

mass of SnO₂ = 0.00099635mol × 150.71 g/mol = 0.150 grams.

The answer must be reported with 3 significant figures.

8 0

3 years ago