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AleksAgata [21]
2 years ago
8

Yo I need help with 1 and 2

Chemistry
1 answer:
nikitadnepr [17]2 years ago
8 0

Answer:

1-

A) H2O        B) HCO3-

2-

A) NH3         B) SO3-2

Explanation:

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A compound is found to contain 7.523% phosphorus and 92.48% iodine by weight. what is the empirical formula for this compound?
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The answer is PI3
Ratio of 1:3
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3 years ago
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State five difference between ionic compound and covalent compound​
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Answer:

Compound are defined as the containing two or more different element .

(1) Ionic compound and (2) Covalent compound.

Explanation:

Covalent compound :- covalent compound are the sharing of electrons two or more atom.

Covalent compound are physical that lower points and compared to ionic .

Covalent compound that contain bond are carbon monoxide (co), and methane .

Covalent compound are share the pair of electrons.

Covalent compound are bonding a hydrogen atoms electron.

Ionic compound a large electrostatic actions between atoms.

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Ionic compound are bonding a nonmetal electron.

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3 years ago
Which is the correct answer? (I already tried to do it)
Jet001 [13]
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4 0
2 years ago
the solubility product Ag3PO4 is: Ksp = 2.8 x 10^-18. What is the solubility of Ag3PO4 in water, in moles per liter?
guapka [62]

Answer : The solubility of Ag_3PO_4 in water is, 1.8\times 10^{-5}mol/L

Explanation :

The solubility equilibrium reaction will be:

Ag_3PO_4\rightleftharpoons 3Ag^++PO_4^{3-}

Let the molar solubility be 's'.

The expression for solubility constant for this reaction will be,

K_{sp}=[Ag^{+}]^3[PO_4^{3-}]

K_{sp}=(3s)^3\times (s)

K_{sp}=27s^4

Given:

K_{sp} = 2.8\times 10^{-18}

Now put all the given values in the above expression, we get:

K_{sp}=27s^4

2.8\times 10^{-18}=27s^4

s=1.8\times 10^{-5}M=1.8\times 10^{-5}mol/L

Therefore, the solubility of Ag_3PO_4 in water is, 1.8\times 10^{-5}mol/L

3 0
2 years ago
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Valentin [98]

Answer:

The correct answer is option B, that is, a small standard deviation suggests greater precision.

Explanation:

A determination of precision is a standard deviation, it is more reliable in comparison to mean deviation. The square root of the total of the squares of the deviations divided by the degree of freedom for the array of measurements is known as standard deviation.  

The precision of low standard deviation value is more as the results or observations demonstrated by the low standard deviation are more close to average.  

7 0
3 years ago
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