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Andru [333]
3 years ago
6

If calcium has two valence electrons and fluorine has seven, how many fluorine atoms are needed to form an ionic bond with calci

um
Chemistry
2 answers:
Brut [27]3 years ago
8 0
There are 7 i just took the test
MaRussiya [10]3 years ago
5 0
Fluorine needs one electron to fill its orbital shell. It needs 8 valence electrons
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Answer:267 g

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Which step will decrease the pressure of a gas inside a closed cubical container? increasing the number of moles of gas decreasi
Jobisdone [24]

Answer: Decreasing the temperature inside the container will decrease the pressure of a gas inside a closed cubical container.

Explanation:

According to Gay-Lussac's Law : 'The pressure of the gas increases with increase in temperature of the gas when volume of the gas is kept constant'.

(Pressure)\propto (Temperature)

At constant volume, pressure of the gas will decrease on decreasing the temperature or vice versa.

Decreasing the temperature inside the container will decrease the pressure of a gas inside a closed cubical container.

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3 years ago
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A balloon moving along a straight path experiences a force of
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The net force is 11.1 because 23.5-12.4 is your net force

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6 0
3 years ago
A solution is made by mixing 34.5 g of sugar with 75.0 g of water. What is the mass percent of sugar in this solution?
lubasha [3.4K]

the mass percent of sugar in this solution is 46%.

Answer:

Solution given:

mass of solute=34.5g

mass of solvent=75g

mass percent=\frac{mass\:of\:solute}{mass\:of \:solvent}*100\%

=\bold{\frac{34.5}{75.0}*100\%=46\%}

5 0
3 years ago
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