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sattari [20]
4 years ago
10

What symbol is that plz tell

Chemistry
2 answers:
aleksandr82 [10.1K]4 years ago
8 0
It stands to me it looks like it is a caution
Sindrei [870]4 years ago
3 0
It looks like a caution sign but im not to sure
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3 years ago
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What is the [OH-] of a substance that has a pH of 11?
Deffense [45]

Answer:

0.001 M OH-

Explanation:

[OH-] = 10^-pOH, so

pOH + pH = 14 and 14 - pH = pOH

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3 years ago
4. Chemical formula, mg (Cl0₃)2
grin007 [14]

Answer:

0.017mole

0.0033M

Explanation:

Given parameters:

Formula of the compound:

           Mg(ClO₃)₂

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Unknown:

Number of moles of the sample = ?

Molarity  = ?

Solution:

The number of moles of any substance is given as:

   Number of moles  = \frac{mass}{volume}  

 Molar mass of Mg(ClO₃)₂  = 24 + 2[35.5 + 3(16)]  = 191g/mol

    Number of moles  = \frac{3.24}{191}   = 0.017mole

Molarity is the number of moles of a solute in a solution:

    Molarity  = \frac{number of moles }{volume}  

 Volume given  = 5.08L

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5 0
3 years ago
The main group elements do not include which elements?
kaheart [24]

Answer:

Transition metals

Explanation:

Columns one and two are part of the main group along with columns 13 through 18

8 0
3 years ago
Radium decays to form radon. *x26Ra 222 Rn + He 86 This type of nuclear decay is called​
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3 years ago
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