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Dmitry_Shevchenko [17]
3 years ago
12

What does science mean to you?

Chemistry
1 answer:
DiKsa [7]3 years ago
8 0

Answer:

The study of properties for all things living and non-living

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List three examples of waves that can transfer energy without going through a medium
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Explanation:

Light waves.

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Radio waves.

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A solution of H2SO4(aq) with a molal concentration of 4.80 m has a density of 1.249 g/mL. What is the molar concentration of thi
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Imagine we have <span>mass of solvent 1kg (1000g)
According to that: </span>molality =n(solute) / m(solvent) =\ \textgreater \  4.8m = 4.8mole / 1kg
= 4.8 mole * 98 g/mole = 470g
m(H2SO4) = n(H2SO4)*Mr(H2SO4) =\ \textgreater \=\ \textgreater \  Molarity = 4.8 mole / 1.2 L = 4 M m(H2SO4)  which is =<span>470g

</span><span>m(solution) = m(H2SO4) + m(solvent) = 470 + 1000 = 1470 g
d(solution) = m(solution) / V(solution) =>
=> 1.249 g/mL = 1470 g / V(solution) =></span>
Molarity = n(solute) / V(solution) =\ \textgreater \
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In which condition does barium chloride conduct electricity? And why
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When barium chloride (BaCl 2) is dissolved in water, the water conducts electricity. In what form will the dissolved BaCl 2 be found? a. as Ba 2+ and Cl - ions b. as Ba atoms and Cl 2 molecules

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Considering particles at the subatomic level, carrying out this experiment would help to identify the metals given that: Ca has
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we can do it again and again and again and again and again and again

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