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Leona [35]
2 years ago
7

How many atoms are in 3 NaCl?

Chemistry
1 answer:
Assoli18 [71]2 years ago
5 0

Explanation:

Sodium Chloride or NaCl is made up of two elements, sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, consists of one atom each of sodium and chlorine. Hence, each molecule of NaCl has 2 atoms total.

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As with any drug, aspirin (acetylsalicylic acid) must remain in the bloodstream long enough to be effective. Assume that the rem
Olenka [21]

Answer:

180 mg

Explanation:

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A=A_{0}.e^{-k.t}

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k: rate constant

A₀: initial amount

If we know the half-life (t_{1/2}) we can calculate the rate constant.

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When t = 4 h and A₀ = 400 mg, A is:

A=400mg.e^{-0.2h^{-1}\times 4h} =180mg

4 0
3 years ago
What is the mass of 18.0 mL of honey if its' density is 1.42 g/mL?
BigorU [14]

mass (m) = ? , volume = 18.0 ml , density = 1.42 g/ml .

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8 0
2 years ago
Could someone help me balance this chemical equation please
Softa [21]
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4 0
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An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom? Express
Temka [501]
A=mass number   (protons + neutrons)
Z=atomic number  (protons)
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