What is the relationship between exposure to a virus and developing an immunity to it

Chemistry

1 answer:

Burka [1]3 years ago

3 0

Answer:

an exposure to a virus is actually having the virus and developing an immunity to a virus is similar because to be immune to a virus you have to receive a vaccine and a vaccine is actually the disease injecting into your system in a different way so when the virus attacks you your body cells know what to do to fight the disease.

Explanation:

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shutvik [7]

Answer:

$\large \boxed{\text{5.50 g}}$

Explanation:

Percent means " per hundred," so % m/V means the grams of something in 100 mL of volume.

$\text{m/V \%} = \dfrac{\text{mass of solute} }{\text{volume of solution}} \times 100 \, \%$

Data:

m/V % = 2.20 %

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Calculations:

$\text{2.20 \%} = \dfrac{\text{mass of solute} }{\text{250 mL}} \times 100 \, \%\\\\\text{Mass of solute} = \dfrac{2.20\, \% \times \text{250 mL}}{100 \%} = \text{5.50 g}\\\\\text{The mass of Co(NO$_{3}$)$_{2}$ is $\large \boxed{\textbf{5.50 g}}$}$

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lapo4ka [179]

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What is the meaning of the euphemism, "lose your lunch"?

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Answer:

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