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2 years ago

What is the Moleular geometry of Xe0F4

Chemistry

1 answer:

Rudiy272 years ago

3 0

Answer:

Central atom: Xe

Total VSEP: 7

1 x double bond − 1 pair

Revised Total: 6

Geometry: Square pyramidal (based on octahedral)Explanation:

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Which describes the sequence of events of the development of the universe?

tatyana61 [14]

Answer:

big bang → expansion and cooling → atom formation → star and galaxy formation → continuation of expansion and cooling

Explanation:

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2 years ago

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A 46.2 mL,0.568 M calcium nitrate solution is mixed with 80.5mL of 1.396M calcium nitrate solution.Calculate tge concentration o

Ne4ueva [31]

Answer:

1.09 M

Explanation:

Let's define the equation that will be used to calculate the final concentration of the resultant calcium nitrate solution. In order to calculate it, we need to find the total number of moles of calcium nitrate and divide by the total volume of the resultant solution:

$c=\frac{n}{V}$

This equation firstly helps us find the number of moles of calcium nitrate. Multiplying molarity by volume will yield the moles. Adding the moles from the first component to the second component will provide us with the total number of moles of calcium nitrate:

$n_{Ca(NO_3)_2}=46.2 mL\cdot0.568 M+80.5 mL\cdot1.396 M=138.62 mmol$

Now, the total volume of this solution can be found by adding the volume values of each component:

$V_total=46.2 mL+80.5 mL=126.7 mL$

Finally, dividing the moles found by the total volume will yield the final molarity:

$c_{final}=\frac{138.62 mmol}{126.7 mL}= 1.09 M$

6 0

2 years ago

What is the total volume of solution that was dispensed from this burette? before after

monitta

Yeah answer should be .6 ml

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2 years ago

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2. Why does a chemical equation need to be balanced?

arlik [135]

Answer:

Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.

Explanation:

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2 years ago

What size volumetric flask would you use to create a 1.00M solution using 166.00 g of KI?

mr Goodwill [35]

Answer:

A 1 liter volumetric flask should be used.

Explanation:

First we convert 166.00 g of KI into moles, using its molar mass:

Molar mass of KI = Molar mass of K + Molar mass of I = 166 g/mol

166.00 g ÷ 166 g/mol = 1 mol KI

Then we calculate the required volume, using the definition of molarity:

Molarity = moles / liters

Liters = moles / molarity

1 mol / 1.00 M = 1 L

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2 years ago