yes, because though some are skeptical of vaccinations, vaccines will ultimately help a child become immune to certain viruses, rendering those specific viruses harmless to the child
<span>A body that's moving with a negative acceleration is said to be slowing down</span>
1.81 x 10²⁴particles of Fe
Explanation:
Given parameters:
Number of moles = 3moles
Unknown:
Number of particles = ?
Solution:
The number of particles in a substance can be deduced from the relationship of number of moles with the Avogadro's number.
A mole of a substance is the quantity of substance that contains the Avogadro's number of particles.
1 mole = 6.02 x 10²³ particles
3 moles = 3 x 6.02 x 10²³ = 1.81 x 10²⁴particles of Fe
learn more:
Number of moles brainly.com/question/1841136
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Arrow head shows the direction of products formed in a reaction. so we can say that it denotes the direction of the chemical reaction. I.e From Reactant to Product.
so, the correct choice is B
Empirical formula is the simplified version of molecular formula.
ex:
C6H12O6 - molecular formula
CH2O. - empirical formula