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Schach [20]
3 years ago
7

Chemists predict the geometry of molecules based on the repulsion of electron pairs. Molecules can be represented by the general

formula AXY, where Y is the number of peripheral atoms. We would expect the geometric shape of a molecule represented by the formula AX3 to be
A) linear.

B) tetrahedral.

C) trigonal planar Eliminate

D) trigonal bipyramidal
Chemistry
2 answers:
REY [17]3 years ago
7 0

Answer:

i think b

Explanation:

Brrunno [24]3 years ago
4 0
B- tetrahedral should be the answer
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A reaction in the laboratory yields 5.98 g KAI(SO2)2, How many moles of potassium aluminum
Ivahew [28]

Answer:

0.0308 mol

Explanation:

In order to convert from grams of any given substance to moles, we need to use its molar mass:

  • Molar mass of KAI(SO₂)₂ = MM of K + MM of Al + (MM of S + 2*MM of O)*2
  • Molar mass of KAI(SO₂)₂ = 194 g/mol

Now we <u>calculate the number of moles of KAI(SO₂)₂ contained in 5.98 g</u>:

  • 5.98 g ÷ 194 g/mol = 0.0308 mol
6 0
3 years ago
Is it necessary to prepare sodium extract to detect nitrogen in urea ?​
Vilka [71]

Answer:

I think No

Explanation:

7 0
3 years ago
Methane gas and chlorine gas react to form hydrogen chloride gas and carbon tetrachloride gas. what volume of hydrogen chloride
Anna71 [15]
The reaction between methane gas and chlorine gas to form hydrogen chloride and carbon tetrachloride, all in their gaseous form can be expressed through the chemical reaction below.

        CH₄ + 4Cl₂ --> 4HCl + CCl₄

Let us assume that all the involved gases behaves ideally such that each mole of the gas is equal to 22.4 L. 

Through proper dimensional analysis, the volume of the produced hydrogen chloride is calculated,
    V(HCl) = (1.69 mL CH₄)(1 L CH₄/ 1000 mL CH₄)(1 mol CH₄/22.4 L CH₄)(4 mols HCl/1 mol CH₄)(22.4 L HCl/1 mol HCl)(1000 mL/1 L)
    

    V(HCl) = 6.76 mL

<em>ANSWER: 6.76 mL</em>


3 0
3 years ago
Does the space between the particles decrease or increase when matter changes it’s state to a solid?
bazaltina [42]

Answer:

i pretty sure it decreses

Explanation:

7 0
3 years ago
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Substances A and B are combined. When combined, substance A, which is a black solid, sinks to the bottom of substance B which is
Makovka662 [10]

Answer:

c thats just what i do

Explanation:

4 0
3 years ago
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