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VMariaS [17]
3 years ago
6

Predict the precipitate produced by mixing an Al(NO3)3 solution with a NaOH solution. Write the net ionic equation for the react

ion. (Include the states of matter.)
Chemistry
1 answer:
weqwewe [10]3 years ago
4 0
Al(NO3)3(aq) + 3NaOH(s) --> Al(OH)3 (s) + 3NaNO3 (aq)

The precipitate here is Al(OH)3 (s), since the solid reactant is the precipitate in the aqueous solution. Usually, it is okay to assume in basic chemistry that the transition metal is going to be part of the compound that is the precipitate, especially in an acidic salt and a strong base reaction that we have here.
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To what characteristics of the group 1 metallic elements can the ease with which their sons form +1 monatomic ions be attributed
ArbitrLikvidat [17]
Group 1 elements (usually called alkali metals) are not very electronegative and have small ionization energies due to that.  The reason why they are not very electronegative is that they really want to loose their one valence electron so that they can have a noble gas electron configuration (completed octet).

I hope this helps.
3 0
3 years ago
Write the equation for the formation of a fluoride anion from a fluorine atom. If the electron affinity of the fluorine atom is
Finger [1]

Answer:

Part A. F + e⁻ → F⁻

Part B. -820 kJ

Part C. -5.45x10⁻²² kJ

Explanation:

Part A

The fluoride anion is formed when fluorine accepts an electron:

F + e⁻ → F⁻

Part B

The electron affinity is the energy necessary for the atom to accept 1 electron, which is exothermic, so it's negative. The total energy q is the electron affinity multiplied by the number of moles:

q = -328 kJ/mol * 2.5 mol

q = -820 kJ

Part C

By the Avogadros' number

1 mol --------- 6.02x10²³ atoms

x --------- 1 atom

By a simple direct three rule:

x = 1.66x10⁻²⁴ mol

So, the energy for 1 atom is:

q = -328 kJ/mol * 1.66x10⁻²⁴ mol

q = -5.45x10⁻²² kJ

5 0
3 years ago
What is the name of this compound?<br> S₂F10
Alchen [17]

Answer:

Disulfur decafluoride

Explanation:

4 0
3 years ago
Read 2 more answers
In a molecule of calcium sulfide, calcium has two valence electron bonds, and a sulfur atom has six valence electrons. How many
Iteru [2.4K]
Idk becuase i am not in hight school lol sorry i think it is 3
3 0
3 years ago
Which of the following is the most reasonable explanation for a drop in temperature of gas?
ozzi

Answer: The correct answer is option B.

Explanation:

Average kinetic energy of the gas molecule is given by relation:

E_K=\frac{3}{2}\frac{R}{N_A}\times T

N_A = Avogadro Number

T = Temperature of the gas in Kelvins.

R = Universal gas constant

E_K\propto T

With increase in temperature the kinetic energy of the gas molecule increases and vice-versa.

So, according to the question the explanation for a drop in temperature of the gas is decrease in average kinetic energy of the gas molecules.

Hence, the correct answer is option B.

3 0
3 years ago
Read 2 more answers
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