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sertanlavr [38]
3 years ago
15

Which of the following is an inference?

Chemistry
1 answer:
Len [333]3 years ago
8 0

Answer:

the answer is d

Explanation:

but wusup shawty

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Which atom has the lowest(smallest) ionization energy?<br> A. Na<br> B.K<br> C. Me<br> D. Ca
serious [3.7K]
K. Ionization energy increases as you go up and to the right, and k is the furthest left and furthest down
7 0
3 years ago
how many moles of each ion are present in 2.55 L of solution containing 23.6 g of the solute in the ionic compound NaCl
CaHeK987 [17]

Answer:

0.404 moles Na⁺ and 0.404 moles Cl⁻

Explanation:

In the solution you have 23.6g of NaCl. As molar mass of NaCl is 58.44g/mol. Moles you have present are:

23.6g NaCl × (1mol / 58.44g) = <em>0.404 moles of NaCl</em>

As you can see in the formula, each mole of NaCl contains 1 mole of Na⁺ and 1 mole of Cl⁻. Thus, moles of each ion are:

<em>0.404 moles Na⁺ and 0.404 moles Cl⁻</em>

3 0
4 years ago
Titanium(IV) chloride decomposes to form titanium and chlorine, like this:
Lesechka [4]

The full question is shown in the image attached to this answer

Answer:

6.2 * 10^-3

Explanation:

The reaction at equilibrium is as follows;

TiCl4(l) → Ti(s)+ 2Cl2(g)

We have to obtain the concentration of chlorine gas as follows;

[Cl2] = 1.08/70.91 g/mol × 5.2 L

[Cl2] = 0.079 M

Kc = [Cl2]^2

Kc = [ 0.079]^2

Kc = 6.2 * 10^-3

4 0
3 years ago
Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
Fed [463]
Step 1:
           
Write molecular Formula,

                                                Na₅P₃O₁₀
Step 2:
         
Assign Oxidation number to Na (which is +1) and O (which is -2), and X (unknown) for P.
                                               (+1)₅ + (X)₃ + (-2)₁₀  = 0

Zero means overall charge on molecule is zero (Neutral).

Step 3:
           
Now solve for X,
                                               (+5) + (X ÷ 3) + (-20)  =  0

                                                X ÷ 3  =  -5 + 20
                                
                                                X ÷ 3  =  +15

                                                      X  =  +15 ÷ 3

                                                      X  =  +5

Result:
           Oxidation number of P is +5.                                 
3 0
3 years ago
Which distinguishes an atom of one element from an atoms of a different element?
dalvyx [7]

Answer:

The number of protons you welcome

Explanation:

7 0
3 years ago
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