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lisabon 2012 [21]
3 years ago
10

Why are vaccines given to people?

Chemistry
2 answers:
harkovskaia [24]3 years ago
5 0
Vaccines are given to people so there body can reject the diseases in there body.
example. they inject they flu into yo arm so your body knows what it is and how to attack it when it threatens your body.
nignag [31]3 years ago
3 0
Vaccines are given to people when they are at risk of contracting a disease
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If a sample of pure calcium 9Ca) contains 4.69 x 1022 atoms of iodine, there are 0.0779 moles of calcium in the sample. The correct answer will be A. 
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Which two considerations are used to calculate a windchill factor?
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Air Pressure and Wind direction

Explanation:

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She was expecting 122.7 grams of lead for her lesson that day but only got out 107.9 grams of lead. What was the percent yield o
Ipatiy [6.2K]
The equation for percent yield is
PercentYield= \frac{Actual}{Theoretical} X 100

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3 years ago
When the electron density of a bond is primarily located on the bond axis what type of bond is that?
AfilCa [17]
I think it is sigma bond
8 0
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1.5 mol of the complex substance carbon dioxide (CO2) is just a few oxygen atoms:
laila [671]

Answer:

9.03 x 10²³atoms

Explanation:

Given parameters:

Number of moles of CO₂  = 1.5mol

Unknown:

Number of atoms  = ?

Solution:

In a mole of a substance, we have the Avogadro's number of particles which is 6.02 x 10²³atoms.

  Using this number, we can determine the amount of atoms in any substance.

If;

       1 mole of CO₂ contains 6.02 x 10²³ atoms;

     1.5mole of CO₂ will contain 1.5 x 6.02 x 10²³ atoms

                                                = 9.03 x 10²³atoms

4 0
2 years ago
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