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Blababa [14]
3 years ago
10

I need help with a chemistry question

Chemistry
1 answer:
mafiozo [28]3 years ago
8 0
What's the question?
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The mass of vitamin D in your blood is 50.0 grams. What is this measure in pounds? (answer in scientific notation)
Amanda [17]

Answer:

1.10231×10-1 lb

Explanation:

we know that one gram is equal to the 0.00220462 lb or we can say that one pound is equal to the 453.592 g.

we have to convert the 50.0 g into pounds:

m (lb)= m(g)× 0.00220462

m(lb)=50×0.00220462

m(lb)=0.110231

in scientific notation:

1.10231×10-1 lb

7 0
3 years ago
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4 0
3 years ago
Without doing any calculations, determine which sample contains the most atoms.
lana66690 [7]

Answer:

B.

Explanation:

1g of Boron has the most number of atoms. This is simply because it has the highest number of moles.

Since 1 mole contain 6.22 × 10^23 atoms, the atom that has most moles closer to 1 will contain most atoms.

This in fact can be calculated from the fact that the number of moles equal mass divided by the atomic mass.

The mass here is equal I.e 1g and thus the dividing factor will be the atomic mass. The atom with the highest atomic mass here us thorium and thus will give the lowest number of moles. Zinc follows suit in that order with Boron at the top of the other and thus will contain the highest number of atoms.

6 0
3 years ago
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Decomposition of stone due to acid rain<span />
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3 years ago
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Calcium, magnesium, and strontium are near each other on the periodic table and have some characteristics in common, but they di
Crank

Strontium, Calcium, Magnesium

Strontium is the most reactive of the three element because of this, it does not exist free in nature but rather exist in combination with other elements in various compounds such as strontianite. Calcium is more reactive than magnesium because it is larger than magnesium and thus, it is more electropositive in nature.

7 0
4 years ago
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