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Aleksandr-060686 [28]
3 years ago
10

What is the difference between a molecule and a compound?!

Chemistry
2 answers:
Annette [7]3 years ago
8 0
A molecule is when two or more atoms combine together and a compound is at least two different elements.
KiRa [710]3 years ago
3 0

molecules can be made of two of the same elements whereas a compound is always made of two different elements

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The ccl4 formed in the first step is used as a reactant in the second step. if 2.00 mol of ch4 reacts, what is the total amount
Leni [432]
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8 0
3 years ago
Question 2 (1 point)
gregori [183]

Answer:

John Dalton

Explanation:

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5 0
3 years ago
What do genotype will appear in boxes 2 and 3?
VMariaS [17]
Tt is the genotype that will appear in boxes two and three.

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3 0
3 years ago
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The molar solubility of C a ( O H ) 2 C a ( O H ) 2 was experimentally determined to be 0.019 M. Based on this value, what is th
Anuta_ua [19.1K]

Answer:

Ksp = 2.74 x 10⁻⁵

Explanation:

The solubility equilibrium for Ca(OH)₂ is the following:

  Ca(OH)₂(s) ⇄ Ca²⁺(aq) + 2 OH⁻(aq)

I                          0                0

C                       + s               + 2s

E                        s                   2s

According to the ICE table, the expression for the solubility product constant (Kps) is:

Ksp = [Ca²⁺] x ([OH⁻])² = s x (2s)² = 4s³

Then, we calculate Ksp from the solubility value (s):

s = 0.019 M

⇒ Ksp = 4s³ = 4 x (0.019)³ = 2.74 x 10⁻⁵

8 0
3 years ago
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Kisachek [45]
B. 
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