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3 years ago

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When a strontium atom loses two electrons to form an Sr2+ ion, the electrons are lost from the

1 answer:

kherson [118]3 years ago

6 0

Answer:When a strontium atom loses two electrons, it becomes a(n) cation with a charge of 2+. when any neutral atom loses an electron it becomes cation that is positively charged ions and an ion gets the charge according to the number of electrons loses.

you are very welcome but I may be inaccurate.

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Karolina [17]

Answer:

????

Explanation:

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4 years ago

Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital ( = 184.2 g/mol) is one of the simplest of these drug

DanielleElmas [232]

Answer:

118.75°C is the boiling point of a solution.

Explanation:

Mass of the solute that is barbiturates = 42.5 g

Molar mass of a solute = 184.2 g/mol

Moles of solute = $\frac{42.5 g}{184.2 g/mol}=0.2307 mol$

Mass of the solvent that acetic acid = 825 g = 0.825 kg

$molality=\frac{\text{Moles of solute}}{\text{Mass of solvent}}$

Molality of the solution (m):

$m=\frac{0.2307 mol}{0.825 kg}=0.2796 m$

Elevation in boiling point is given as:

$\Delta T_b=i\times K_b\times m$

i = 1 (organic compound)

$=1\times 3.07^oC/m\times 0.2796 m=0.8585^oC$

$\Delta T_b=T_b-T$

$T_b$ = Boiling temperature of solution.

T = boiling temperature of solvent that is acetic acid=117.9°C

$0.8585^oC=T_b-117.9^oC$

$T_b=118.75 ^oC$

118.75°C is the boiling point of a solution.

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3 years ago

How does the sun compare to other stars

Reptile [31]

By <span>Our </span>sun<span> is a bright, hot ball of hydrogen and helium at the center of our solar system.</span>

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An electron has the properties of a _____ and ______

Dennis_Churaev [7]

Answer:

mass, and spin

Explanation:

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3 years ago

What name is given to the family of elements that includes chlorine?

s2008m [1.1K]

Answer:

halogens

Explanation:

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