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GenaCL600 [577]
3 years ago
8

Maria took a walk to the store, did some shopping, and then came home. During Maria's trip, when was her displacement equal to z

ero?
A. 0 hrs

B. It was never 0

C. at 0 hrs then 2hrs

D. At 0.75 to 1.25 hr
Chemistry
1 answer:
velikii [3]3 years ago
6 0
I would say it would be a. It makes the most sense
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On the basis of the Ksp values below, what is the order of the solubility from least soluble to most soluble for these compounds
Viktor [21]

Answer:

The order of solubility is AgBr <   Ag₂CO₃ < AgCl

Explanation:

The solubility constant give us the molar solubilty of ionic compounds. In general for a compound AB the ksp will be given by:

Ksp = (A) (B) where A and B are the molar solubilities = s²  (for compounds with 1:1  ratio).

It follows then  that the higher the value of Ksp the greater solubilty of the compound if we are comparing compounds with the same ionic ratios:

Comparing AgBr: Ksp = 5.4 x 10⁻¹³ with AgCl: Ksp = 1.8 x 10⁻¹⁰, AgCl will be more soluble.

Comparing Ag2CO3: Ksp = 8.0 x 10⁻¹²  with AgCl Ksp = AgCl: Ksp = 1.8 x 10⁻¹⁰ we have the complication of  the ratio of ions 2:1 in Ag2CO3,  so the answer is not obvious. But since we know that

Ag2CO3 ⇄ 2 Ag⁺ + CO₃²₋

Ksp Ag2CO3  = 2s x s = 2 s² =  8.0 x 10-12

s = 4 x 10⁻12 ∴ s= 2 x 10⁻⁶

And for AgCl

AgCl  ⇄ Ag⁺ + Cl⁻

Ksp = s² = 1.8 x 10⁻¹⁰  ∴ s = √ 1.8 x 10⁻¹⁰   = 1.3 x 10⁻⁵

Therefore, AgCl is more soluble than Ag₂CO₃

The order of solubility is AgBr <   Ag₂CO₃ < AgCl

8 0
3 years ago
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NEED HELP!!!
Vilka [71]

Answer:

1.atomic number

2.electron

3.element

4.atom

5.neutron

6.nucleus

7.proton

Explanation:

please like and Mark as brainliest

6 0
3 years ago
Answer pls pls plsss
ss7ja [257]
C.
Mark me Brainly!
4 0
3 years ago
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