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2 years ago

Lavoviser is commonly know as the( brainly dont eveer help)

2 answers:

6 0

Lavoisier is known as the “Father of Modern Chemistry” or the “Father of Chemistry”.

He is famous for isolating oxygen and establishing the law of conservation of mass.

Elodia [21]2 years ago

3 0

Answer:Lavoisier is known as the “Father of Modern Chemistry” or the “Father of Chemistry”.

Explanation:

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One mole of ANY element contains the:

VMariaS [17]

Answer:

1)The molar mass of an atom is simply the mass of one mole of identical atoms. However, most of the chemical elements are found on earth not as one isotope but as a mixture of isotopes, so the atoms of one element do not all have the same mass.

2)Equally important is the fact that one mole of a substance has a mass in grams numerically equal to the formula weight of that substance. Thus, one mole of an element has a mass in grams equal to the atomic weight of that element and contains 6.02 X 1023 atoms of the element.

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2 years ago

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Name the following cycloalkane:

KonstantinChe [14]

B is the correct answer

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2 years ago

1.50μm2. Convert this to square meters.

mars1129 [50]

Based on the standards of units conversion, to convert from micrometer to meter, we multiply by 10^-6.
Since we there is a square (10^2) to consider, then to convert from micrometer squared to meter squared, we will multiply by (10^-6)^2 as follows:
1.5 μm2 = 1.5 x (10^-6)^2 = 1.5 x 10^-12 meter sqaures

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3 years ago

6. According to the graph above, which paper towel brand adsorbed the 5 points

Fofino [41]

I believe the answer is Viva

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2 years ago

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

Drupady [299]

Answer:

0.150 grams

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